Ava UI: Mod Manager Fixes (#6179)

* Fix string format + Crash

* Better Logging

* Properly Delete Mods

Rename

* Catch when trying to access bad directory

Directory.Packages.props

@@ -13,25 +13,25 @@
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="Concentus" Version="1.1.7" />
     <PackageVersion Include="DiscordRichPresence" Version="1.2.1.24" />
-    <PackageVersion Include="DynamicData" Version="7.14.2" />
+    <PackageVersion Include="DynamicData" Version="8.3.27" />
     <PackageVersion Include="FluentAvaloniaUI" Version="2.0.5" />
     <PackageVersion Include="GtkSharp.Dependencies" Version="1.1.1" />
     <PackageVersion Include="GtkSharp.Dependencies.osx" Version="0.0.5" />
     <PackageVersion Include="jp2masa.Avalonia.Flexbox" Version="0.3.0-beta.4" />
     <PackageVersion Include="LibHac" Version="0.19.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
     <PackageVersion Include="Microsoft.IdentityModel.JsonWebTokens" Version="7.2.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageVersion Include="Microsoft.IO.RecyclableMemoryStream" Version="2.3.2" />
+    <PackageVersion Include="Microsoft.IO.RecyclableMemoryStream" Version="3.0.0" />
     <PackageVersion Include="MsgPack.Cli" Version="1.0.1" />
     <PackageVersion Include="NetCoreServer" Version="7.0.0" />
     <PackageVersion Include="NUnit" Version="3.13.3" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.1.0" />
-    <PackageVersion Include="OpenTK.Core" Version="4.8.1" />
-    <PackageVersion Include="OpenTK.Graphics" Version="4.8.1" />
-    <PackageVersion Include="OpenTK.Audio.OpenAL" Version="4.8.1" />
-    <PackageVersion Include="OpenTK.Windowing.GraphicsLibraryFramework" Version="4.8.1" />
+    <PackageVersion Include="OpenTK.Core" Version="4.8.2" />
+    <PackageVersion Include="OpenTK.Graphics" Version="4.8.2" />
+    <PackageVersion Include="OpenTK.Audio.OpenAL" Version="4.8.2" />
+    <PackageVersion Include="OpenTK.Windowing.GraphicsLibraryFramework" Version="4.8.2" />
     <PackageVersion Include="Ryujinx.Audio.OpenAL.Dependencies" Version="1.21.0.1" />
     <PackageVersion Include="Ryujinx.Graphics.Nvdec.Dependencies" Version="5.0.1-build13" />
     <PackageVersion Include="Ryujinx.Graphics.Vulkan.Dependencies.MoltenVK" Version="1.2.0" />
@@ -46,7 +46,7 @@
     <PackageVersion Include="SixLabors.ImageSharp" Version="1.0.4" />
     <PackageVersion Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta11" />
     <PackageVersion Include="SPB" Version="0.0.4-build28" />
-    <PackageVersion Include="System.Drawing.Common" Version="8.0.0" />
+    <PackageVersion Include="System.Drawing.Common" Version="8.0.1" />
     <PackageVersion Include="System.IO.Hashing" Version="8.0.0" />
     <PackageVersion Include="System.Management" Version="8.0.0" />
     <PackageVersion Include="UnicornEngine.Unicorn" Version="2.0.2-rc1-fb78016" />

distribution/macos/shortcut-launch-script.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+launch_arch="$(uname -m)"
+if [ "$(sysctl -in sysctl.proc_translated)" = "1" ]
+then
+    launch_arch="arm64"
+fi
+
+arch -$launch_arch {0} {1}

src/ARMeilleure/Decoders/OpCodeTable.cs

@@ -517,7 +517,10 @@ namespace ARMeilleure.Decoders
             SetA64("0x00111100>>>xxx100111xxxxxxxxxx", InstName.Sqrshrn_V,       InstEmit.Sqrshrn_V,       OpCodeSimdShImm.Create);
             SetA64("0111111100>>>xxx100011xxxxxxxxxx", InstName.Sqrshrun_S,      InstEmit.Sqrshrun_S,      OpCodeSimdShImm.Create);
             SetA64("0x10111100>>>xxx100011xxxxxxxxxx", InstName.Sqrshrun_V,      InstEmit.Sqrshrun_V,      OpCodeSimdShImm.Create);
+            SetA64("010111110>>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Si,        InstEmit.Sqshl_Si,        OpCodeSimdShImm.Create);
             SetA64("0>001110<<1xxxxx010011xxxxxxxxxx", InstName.Sqshl_V,         InstEmit.Sqshl_V,         OpCodeSimdReg.Create);
+            SetA64("0000111100>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Vi,        InstEmit.Sqshl_Vi,        OpCodeSimdShImm.Create);
+            SetA64("010011110>>>>xxx011101xxxxxxxxxx", InstName.Sqshl_Vi,        InstEmit.Sqshl_Vi,        OpCodeSimdShImm.Create);
             SetA64("0101111100>>>xxx100101xxxxxxxxxx", InstName.Sqshrn_S,        InstEmit.Sqshrn_S,        OpCodeSimdShImm.Create);
             SetA64("0x00111100>>>xxx100101xxxxxxxxxx", InstName.Sqshrn_V,        InstEmit.Sqshrn_V,        OpCodeSimdShImm.Create);
             SetA64("0111111100>>>xxx100001xxxxxxxxxx", InstName.Sqshrun_S,       InstEmit.Sqshrun_S,       OpCodeSimdShImm.Create);

src/ARMeilleure/Instructions/InstEmitSimdShift.cs

@@ -116,7 +116,7 @@ namespace ARMeilleure.Instructions
             }
             else if (shift >= eSize)
             {
-                if ((op.RegisterSize == RegisterSize.Simd64))
+                if (op.RegisterSize == RegisterSize.Simd64)
                 {
                     Operand res = context.VectorZeroUpper64(GetVec(op.Rd));
 
@@ -359,6 +359,16 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Sqshl_Si(ArmEmitterContext context)
+        {
+            EmitShlImmOp(context, signedDst: true, ShlRegFlags.Signed | ShlRegFlags.Scalar | ShlRegFlags.Saturating);
+        }
+
+        public static void Sqshl_Vi(ArmEmitterContext context)
+        {
+            EmitShlImmOp(context, signedDst: true, ShlRegFlags.Signed | ShlRegFlags.Saturating);
+        }
+
         public static void Sqshrn_S(ArmEmitterContext context)
         {
             if (Optimizations.UseAdvSimd)
@@ -1593,6 +1603,99 @@ namespace ARMeilleure.Instructions
             Saturating = 1 << 3,
         }
 
+        private static void EmitShlImmOp(ArmEmitterContext context, bool signedDst, ShlRegFlags flags = ShlRegFlags.None)
+        {
+            bool scalar = flags.HasFlag(ShlRegFlags.Scalar);
+            bool signed = flags.HasFlag(ShlRegFlags.Signed);
+            bool saturating = flags.HasFlag(ShlRegFlags.Saturating);
+
+            OpCodeSimdShImm op = (OpCodeSimdShImm)context.CurrOp;
+
+            Operand res = context.VectorZero();
+
+            int elems = !scalar ? op.GetBytesCount() >> op.Size : 1;
+
+            for (int index = 0; index < elems; index++)
+            {
+                Operand ne = EmitVectorExtract(context, op.Rn, index, op.Size, signed);
+
+                Operand e = !saturating
+                    ? EmitShlImm(context, ne, GetImmShl(op), op.Size)
+                    : EmitShlImmSatQ(context, ne, GetImmShl(op), op.Size, signed, signedDst);
+
+                res = EmitVectorInsert(context, res, e, index, op.Size);
+            }
+
+            context.Copy(GetVec(op.Rd), res);
+        }
+
+        private static Operand EmitShlImm(ArmEmitterContext context, Operand op, int shiftLsB, int size)
+        {
+            int eSize = 8 << size;
+
+            Debug.Assert(op.Type == OperandType.I64);
+            Debug.Assert(eSize == 8 || eSize == 16 || eSize == 32 || eSize == 64);
+
+            Operand res = context.AllocateLocal(OperandType.I64);
+
+            if (shiftLsB >= eSize)
+            {
+                Operand shl = context.ShiftLeft(op, Const(shiftLsB));
+                context.Copy(res, shl);
+            }
+            else
+            {
+                Operand zeroL = Const(0L);
+                context.Copy(res, zeroL);
+            }
+
+            return res;
+        }
+
+        private static Operand EmitShlImmSatQ(ArmEmitterContext context, Operand op, int shiftLsB, int size, bool signedSrc, bool signedDst)
+        {
+            int eSize = 8 << size;
+
+            Debug.Assert(op.Type == OperandType.I64);
+            Debug.Assert(eSize == 8 || eSize == 16 || eSize == 32 || eSize == 64);
+
+            Operand lblEnd = Label();
+
+            Operand res = context.Copy(context.AllocateLocal(OperandType.I64), op);
+
+            if (shiftLsB >= eSize)
+            {
+                context.Copy(res, signedSrc
+                    ? EmitSignedSignSatQ(context, op, size)
+                    : EmitUnsignedSignSatQ(context, op, size));
+            }
+            else
+            {
+                Operand shl = context.ShiftLeft(op, Const(shiftLsB));
+                if (eSize == 64)
+                {
+                    Operand sarOrShr = signedSrc
+                        ? context.ShiftRightSI(shl, Const(shiftLsB))
+                        : context.ShiftRightUI(shl, Const(shiftLsB));
+                    context.Copy(res, shl);
+                    context.BranchIf(lblEnd, sarOrShr, op, Comparison.Equal);
+                    context.Copy(res, signedSrc
+                        ? EmitSignedSignSatQ(context, op, size)
+                        : EmitUnsignedSignSatQ(context, op, size));
+                }
+                else
+                {
+                    context.Copy(res, signedSrc
+                        ? EmitSignedSrcSatQ(context, shl, size, signedDst)
+                        : EmitUnsignedSrcSatQ(context, shl, size, signedDst));
+                }
+            }
+
+            context.MarkLabel(lblEnd);
+
+            return res;
+        }
+
         private static void EmitShlRegOp(ArmEmitterContext context, ShlRegFlags flags = ShlRegFlags.None)
         {
             bool scalar = flags.HasFlag(ShlRegFlags.Scalar);

src/ARMeilleure/Instructions/InstName.cs

@@ -384,7 +384,9 @@ namespace ARMeilleure.Instructions
         Sqrshrn_V,
         Sqrshrun_S,
         Sqrshrun_V,
+        Sqshl_Si,
         Sqshl_V,
+        Sqshl_Vi,
         Sqshrn_S,
         Sqshrn_V,
         Sqshrun_S,

src/Ryujinx.Ava/App.axaml.cs

@@ -12,7 +12,6 @@ using Ryujinx.Ui.Common.Configuration;
 using Ryujinx.Ui.Common.Helper;
 using System;
 using System.Diagnostics;
-using System.IO;
 
 namespace Ryujinx.Ava
 {
@@ -90,8 +89,6 @@ namespace Ryujinx.Ava
             try
             {
                 string baseStyle = ConfigurationState.Instance.Ui.BaseStyle;
-                string themePath = ConfigurationState.Instance.Ui.CustomThemePath;
-                bool enableCustomTheme = ConfigurationState.Instance.Ui.EnableCustomTheme;
 
                 if (string.IsNullOrWhiteSpace(baseStyle))
                 {
@@ -106,24 +103,6 @@ namespace Ryujinx.Ava
                     "Dark" => ThemeVariant.Dark,
                     _ => ThemeVariant.Default,
                 };
-
-                if (enableCustomTheme)
-                {
-                    if (!string.IsNullOrWhiteSpace(themePath))
-                    {
-                        try
-                        {
-                            var themeContent = File.ReadAllText(themePath);
-                            var customStyle = AvaloniaRuntimeXamlLoader.Parse<IStyle>(themeContent);
-
-                            Styles.Add(customStyle);
-                        }
-                        catch (Exception ex)
-                        {
-                            Logger.Error?.Print(LogClass.Application, $"Failed to Apply Custom Theme. Error: {ex.Message}");
-                        }
-                    }
-                }
             }
             catch (Exception)
             {

src/Ryujinx.Ava/AppHost.cs

@@ -978,7 +978,7 @@ namespace Ryujinx.Ava
                 ConfigurationState.Instance.Graphics.AspectRatio.Value.ToText(),
                 LocaleManager.Instance[LocaleKeys.Game] + $": {Device.Statistics.GetGameFrameRate():00.00} FPS ({Device.Statistics.GetGameFrameTime():00.00} ms)",
                 $"FIFO: {Device.Statistics.GetFifoPercent():00.00} %",
-                $"GPU: {_renderer.GetHardwareInfo().GpuVendor}"));
+                $"GPU: {_renderer.GetHardwareInfo().GpuDriver}"));
         }
 
         public async Task ShowExitPrompt()

src/Ryujinx.Ava/Assets/Locales/en_US.json

@@ -54,8 +54,6 @@
   "GameListContextMenuManageTitleUpdatesToolTip": "Opens the Title Update management window",
   "GameListContextMenuManageDlc": "Manage DLC",
   "GameListContextMenuManageDlcToolTip": "Opens the DLC management window",
-  "GameListContextMenuOpenModsDirectory": "Open Mods Directory",
-  "GameListContextMenuOpenModsDirectoryToolTip": "Opens the directory which contains Application's Mods",
   "GameListContextMenuCacheManagement": "Cache Management",
   "GameListContextMenuCacheManagementPurgePptc": "Queue PPTC Rebuild",
   "GameListContextMenuCacheManagementPurgePptcToolTip": "Trigger PPTC to rebuild at boot time on the next game launch",
@@ -294,13 +292,9 @@
   "GameListContextMenuRunApplication": "Run Application",
   "GameListContextMenuToggleFavorite": "Toggle Favorite",
   "GameListContextMenuToggleFavoriteToolTip": "Toggle Favorite status of Game",
-  "SettingsTabGeneralTheme": "Theme",
-  "SettingsTabGeneralThemeCustomTheme": "Custom Theme Path",
-  "SettingsTabGeneralThemeBaseStyle": "Base Style",
-  "SettingsTabGeneralThemeBaseStyleDark": "Dark",
-  "SettingsTabGeneralThemeBaseStyleLight": "Light",
-  "SettingsTabGeneralThemeEnableCustomTheme": "Enable Custom Theme",
-  "ButtonBrowse": "Browse",
+  "SettingsTabGeneralTheme": "Theme:",
+  "SettingsTabGeneralThemeDark": "Dark",
+  "SettingsTabGeneralThemeLight": "Light",
   "ControllerSettingsConfigureGeneral": "Configure",
   "ControllerSettingsRumble": "Rumble",
   "ControllerSettingsRumbleStrongMultiplier": "Strong Rumble Multiplier",
@@ -387,7 +381,10 @@
   "DialogUserProfileUnsavedChangesSubMessage": "Do you want to discard your changes?",
   "DialogControllerSettingsModifiedConfirmMessage": "The current controller settings has been updated.",
   "DialogControllerSettingsModifiedConfirmSubMessage": "Do you want to save?",
-  "DialogLoadNcaErrorMessage": "{0}. Errored File: {1}",
+  "DialogLoadFileErrorMessage": "{0}. Errored File: {1}",
+  "DialogModAlreadyExistsMessage": "Mod already exists",
+  "DialogModInvalidMessage": "The specified directory does not contain a mod!",
+  "DialogModDeleteNoParentMessage": "Failed to Delete: Could not find the parent directory for mod \"{0}\"!",
   "DialogDlcNoDlcErrorMessage": "The specified file does not contain a DLC for the selected title!",
   "DialogPerformanceCheckLoggingEnabledMessage": "You have trace logging enabled, which is designed to be used by developers only.",
   "DialogPerformanceCheckLoggingEnabledConfirmMessage": "For optimal performance, it's recommended to disable trace logging. Would you like to disable trace logging now?",
@@ -398,6 +395,8 @@
   "DialogUpdateAddUpdateErrorMessage": "The specified file does not contain an update for the selected title!",
   "DialogSettingsBackendThreadingWarningTitle": "Warning - Backend Threading",
   "DialogSettingsBackendThreadingWarningMessage": "Ryujinx must be restarted after changing this option for it to apply fully. Depending on your platform, you may need to manually disable your driver's own multithreading when using Ryujinx's.",
+  "DialogModManagerDeletionWarningMessage": "You are about to delete the mod: {0}\n\nAre you sure you want to proceed?",
+  "DialogModManagerDeletionAllWarningMessage": "You are about to delete all mods for this title.\n\nAre you sure you want to proceed?",
   "SettingsTabGraphicsFeaturesOptions": "Features",
   "SettingsTabGraphicsBackendMultithreading": "Graphics Backend Multithreading:",
   "CommonAuto": "Auto",
@@ -432,6 +431,7 @@
   "DlcManagerRemoveAllButton": "Remove All",
   "DlcManagerEnableAllButton": "Enable All",
   "DlcManagerDisableAllButton": "Disable All",
+  "ModManagerDeleteAllButton": "Delete All",
   "MenuBarOptionsChangeLanguage": "Change Language",
   "MenuBarShowFileTypes": "Show File Types",
   "CommonSort": "Sort",
@@ -506,6 +506,8 @@
   "EnableInternetAccessTooltip": "Allows the emulated application to connect to the Internet.\n\nGames with a LAN mode can connect to each other when this is enabled and the systems are connected to the same access point. This includes real consoles as well.\n\nDoes NOT allow connecting to Nintendo servers. May cause crashing in certain games that try to connect to the Internet.\n\nLeave OFF if unsure.",
   "GameListContextMenuManageCheatToolTip": "Manage Cheats",
   "GameListContextMenuManageCheat": "Manage Cheats",
+  "GameListContextMenuManageModToolTip": "Manage Mods",
+  "GameListContextMenuManageMod": "Manage Mods",
   "ControllerSettingsStickRange": "Range:",
   "DialogStopEmulationTitle": "Ryujinx - Stop Emulation",
   "DialogStopEmulationMessage": "Are you sure you want to stop emulation?",
@@ -517,8 +519,6 @@
   "SettingsTabCpuMemory": "CPU Mode",
   "DialogUpdaterFlatpakNotSupportedMessage": "Please update Ryujinx via FlatHub.",
   "UpdaterDisabledWarningTitle": "Updater Disabled!",
-  "GameListContextMenuOpenSdModsDirectory": "Open Atmosphere Mods Directory",
-  "GameListContextMenuOpenSdModsDirectoryToolTip": "Opens the alternative SD card Atmosphere directory which contains Application's Mods. Useful for mods that are packaged for real hardware.",
   "ControllerSettingsRotate90": "Rotate 90° Clockwise",
   "IconSize": "Icon Size",
   "IconSizeTooltip": "Change the size of game icons",
@@ -590,6 +590,7 @@
   "Writable": "Writable",
   "SelectDlcDialogTitle": "Select DLC files",
   "SelectUpdateDialogTitle": "Select update files",
+  "SelectModDialogTitle": "Select mod directory",
   "UserProfileWindowTitle": "User Profiles Manager",
   "CheatWindowTitle": "Cheats Manager",
   "DlcWindowTitle": "Manage Downloadable Content for {0} ({1})",
@@ -597,6 +598,7 @@
   "CheatWindowHeading": "Cheats Available for {0} [{1}]",
   "BuildId": "BuildId:",
   "DlcWindowHeading": "{0} Downloadable Content(s)",
+  "ModWindowHeading": "{0} Mod(s)",
   "UserProfilesEditProfile": "Edit Selected",
   "Cancel": "Cancel",
   "Save": "Save",

src/Ryujinx.Ava/UI/Controls/ApplicationContextMenu.axaml

@@ -47,13 +47,9 @@
         Header="{locale:Locale GameListContextMenuManageCheat}"
         ToolTip.Tip="{locale:Locale GameListContextMenuManageCheatToolTip}" />
     <MenuItem
-        Click="OpenModsDirectory_Click"
-        Header="{locale:Locale GameListContextMenuOpenModsDirectory}"
-        ToolTip.Tip="{locale:Locale GameListContextMenuOpenModsDirectoryToolTip}" />
-    <MenuItem
-        Click="OpenSdModsDirectory_Click"
-        Header="{locale:Locale GameListContextMenuOpenSdModsDirectory}"
-        ToolTip.Tip="{locale:Locale GameListContextMenuOpenSdModsDirectoryToolTip}" />
+        Click="OpenModManager_Click"
+        Header="{locale:Locale GameListContextMenuManageMod}"
+        ToolTip.Tip="{locale:Locale GameListContextMenuManageModToolTip}" />
     <Separator />
     <MenuItem Header="{locale:Locale GameListContextMenuCacheManagement}">
         <MenuItem

src/Ryujinx.Ava/UI/Controls/ApplicationContextMenu.axaml.cs

@@ -126,29 +126,13 @@ namespace Ryujinx.Ava.UI.Controls
             }
         }
 
-        public void OpenModsDirectory_Click(object sender, RoutedEventArgs args)
+        public async void OpenModManager_Click(object sender, RoutedEventArgs args)
         {
             var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
 
             if (viewModel?.SelectedApplication != null)
             {
-                string modsBasePath = ModLoader.GetModsBasePath();
-                string titleModsPath = ModLoader.GetTitleDir(modsBasePath, viewModel.SelectedApplication.TitleId);
-
-                OpenHelper.OpenFolder(titleModsPath);
-            }
-        }
-
-        public void OpenSdModsDirectory_Click(object sender, RoutedEventArgs args)
-        {
-            var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
-
-            if (viewModel?.SelectedApplication != null)
-            {
-                string sdModsBasePath = ModLoader.GetSdModsBasePath();
-                string titleModsPath = ModLoader.GetTitleDir(sdModsBasePath, viewModel.SelectedApplication.TitleId);
-
-                OpenHelper.OpenFolder(titleModsPath);
+                await ModManagerWindow.Show(ulong.Parse(viewModel.SelectedApplication.TitleId, NumberStyles.HexNumber), viewModel.SelectedApplication.TitleName);
             }
         }
 

src/Ryujinx.Ava/UI/Models/ModModel.cs

@@ -0,0 +1,30 @@
+using Ryujinx.Ava.UI.ViewModels;
+using System.IO;
+
+namespace Ryujinx.Ava.UI.Models
+{
+    public class ModModel : BaseModel
+    {
+        private bool _enabled;
+
+        public bool Enabled
+        {
+            get => _enabled;
+            set
+            {
+                _enabled = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Path { get; }
+        public string Name { get; }
+
+        public ModModel(string path, string name, bool enabled)
+        {
+            Path = path;
+            Name = name;
+            Enabled = enabled;
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/DownloadableContentManagerViewModel.cs

@@ -39,6 +39,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         private string _search;
         private readonly ulong _titleId;
+        private readonly IStorageProvider _storageProvider;
 
         private static readonly DownloadableContentJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
 
@@ -90,8 +91,6 @@ namespace Ryujinx.Ava.UI.ViewModels
             get => string.Format(LocaleManager.Instance[LocaleKeys.DlcWindowHeading], DownloadableContents.Count);
         }
 
-        public IStorageProvider StorageProvider;
-
         public DownloadableContentManagerViewModel(VirtualFileSystem virtualFileSystem, ulong titleId)
         {
             _virtualFileSystem = virtualFileSystem;
@@ -100,7 +99,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             if (Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
             {
-                StorageProvider = desktop.MainWindow.StorageProvider;
+                _storageProvider = desktop.MainWindow.StorageProvider;
             }
 
             _downloadableContentJsonPath = Path.Combine(AppDataManager.GamesDirPath, titleId.ToString("x16"), "dlc.json");
@@ -194,7 +193,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             {
                 Dispatcher.UIThread.InvokeAsync(async () =>
                 {
-                    await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance[LocaleKeys.DialogLoadNcaErrorMessage], ex.Message, containerPath));
+                    await ContentDialogHelper.CreateErrorDialog(string.Format(LocaleManager.Instance[LocaleKeys.DialogLoadFileErrorMessage], ex.Message, containerPath));
                 });
             }
 
@@ -203,7 +202,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
         public async void Add()
         {
-            var result = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+            var result = await _storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
             {
                 Title = LocaleManager.Instance[LocaleKeys.SelectDlcDialogTitle],
                 AllowMultiple = true,

src/Ryujinx.Ava/UI/ViewModels/ModManagerViewModel.cs

@@ -0,0 +1,322 @@
+using Avalonia;
+using Avalonia.Collections;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Platform.Storage;
+using Avalonia.Threading;
+using DynamicData;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
+using Ryujinx.HLE.HOS;
+using System;
+using System.IO;
+using System.Linq;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class ModManagerViewModel : BaseModel
+    {
+        private readonly string _modJsonPath;
+
+        private AvaloniaList<ModModel> _mods = new();
+        private AvaloniaList<ModModel> _views = new();
+        private AvaloniaList<ModModel> _selectedMods = new();
+
+        private string _search;
+        private readonly ulong _applicationId;
+        private readonly IStorageProvider _storageProvider;
+
+        private static readonly ModMetadataJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
+        public AvaloniaList<ModModel> Mods
+        {
+            get => _mods;
+            set
+            {
+                _mods = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(ModCount));
+                Sort();
+            }
+        }
+
+        public AvaloniaList<ModModel> Views
+        {
+            get => _views;
+            set
+            {
+                _views = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public AvaloniaList<ModModel> SelectedMods
+        {
+            get => _selectedMods;
+            set
+            {
+                _selectedMods = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public string Search
+        {
+            get => _search;
+            set
+            {
+                _search = value;
+                OnPropertyChanged();
+                Sort();
+            }
+        }
+
+        public string ModCount
+        {
+            get => string.Format(LocaleManager.Instance[LocaleKeys.ModWindowHeading], Mods.Count);
+        }
+
+        public ModManagerViewModel(ulong applicationId)
+        {
+            _applicationId = applicationId;
+
+            _modJsonPath = Path.Combine(AppDataManager.GamesDirPath, applicationId.ToString("x16"), "mods.json");
+
+            if (Application.Current.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                _storageProvider = desktop.MainWindow.StorageProvider;
+            }
+
+            LoadMods(applicationId);
+        }
+
+        private void LoadMods(ulong applicationId)
+        {
+            Mods.Clear();
+            SelectedMods.Clear();
+
+            string[] modsBasePaths = [ModLoader.GetSdModsBasePath(), ModLoader.GetModsBasePath()];
+
+            foreach (var path in modsBasePaths)
+            {
+                var modCache = new ModLoader.ModCache();
+
+                ModLoader.QueryContentsDir(modCache, new DirectoryInfo(Path.Combine(path, "contents")), applicationId);
+
+                foreach (var mod in modCache.RomfsDirs)
+                {
+                    var modModel = new ModModel(mod.Path.Parent.FullName, mod.Name, mod.Enabled);
+                    if (Mods.All(x => x.Path != mod.Path.Parent.FullName))
+                    {
+                        Mods.Add(modModel);
+                    }
+                }
+
+                foreach (var mod in modCache.RomfsContainers)
+                {
+                    Mods.Add(new ModModel(mod.Path.FullName, mod.Name, mod.Enabled));
+                }
+
+                foreach (var mod in modCache.ExefsDirs)
+                {
+                    var modModel = new ModModel(mod.Path.Parent.FullName, mod.Name, mod.Enabled);
+                    if (Mods.All(x => x.Path != mod.Path.Parent.FullName))
+                    {
+                        Mods.Add(modModel);
+                    }
+                }
+
+                foreach (var mod in modCache.ExefsContainers)
+                {
+                    Mods.Add(new ModModel(mod.Path.FullName, mod.Name, mod.Enabled));
+                }
+            }
+
+            Sort();
+        }
+
+        public void Sort()
+        {
+            Mods.AsObservableChangeSet()
+                .Filter(Filter)
+                .Bind(out var view).AsObservableList();
+
+            _views.Clear();
+            _views.AddRange(view);
+
+            SelectedMods = new(Views.Where(x => x.Enabled));
+
+            OnPropertyChanged(nameof(ModCount));
+            OnPropertyChanged(nameof(Views));
+            OnPropertyChanged(nameof(SelectedMods));
+        }
+
+        private bool Filter(object arg)
+        {
+            if (arg is ModModel content)
+            {
+                return string.IsNullOrWhiteSpace(_search) || content.Name.ToLower().Contains(_search.ToLower());
+            }
+
+            return false;
+        }
+
+        public void Save()
+        {
+            ModMetadata modData = new();
+
+            foreach (ModModel mod in Mods)
+            {
+                modData.Mods.Add(new Mod
+                {
+                    Name = mod.Name,
+                    Path = mod.Path,
+                    Enabled = SelectedMods.Contains(mod),
+                });
+            }
+
+            JsonHelper.SerializeToFile(_modJsonPath, modData, _serializerContext.ModMetadata);
+        }
+
+        public void Delete(ModModel model)
+        {
+            var modsDir = ModLoader.GetApplicationDir(ModLoader.GetSdModsBasePath(), _applicationId.ToString("x16"));
+            var parentDir = String.Empty;
+
+            foreach (var dir in Directory.GetDirectories(modsDir, "*", SearchOption.TopDirectoryOnly))
+            {
+                if (Directory.GetDirectories(dir, "*", SearchOption.AllDirectories).Contains(model.Path))
+                {
+                    parentDir = dir;
+                }
+            }
+
+            if (parentDir == String.Empty)
+            {
+                Dispatcher.UIThread.Post(async () =>
+                {
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(
+                        LocaleKeys.DialogModDeleteNoParentMessage,
+                        parentDir));
+                });
+                return;
+            }
+
+            Logger.Info?.Print(LogClass.Application, $"Deleting mod at \"{model.Path}\"");
+            Directory.Delete(parentDir, true);
+
+            Mods.Remove(model);
+            OnPropertyChanged(nameof(ModCount));
+            Sort();
+        }
+
+        private void AddMod(DirectoryInfo directory)
+        {
+            string[] directories;
+
+            try
+            {
+                directories = Directory.GetDirectories(directory.ToString(), "*", SearchOption.AllDirectories);
+            }
+            catch (Exception exception)
+            {
+                Dispatcher.UIThread.Post(async () =>
+                {
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(
+                        LocaleKeys.DialogLoadFileErrorMessage,
+                        exception.ToString(),
+                        directory));
+                });
+                return;
+            }
+
+            var destinationDir = ModLoader.GetApplicationDir(ModLoader.GetSdModsBasePath(), _applicationId.ToString("x16"));
+
+            // TODO: More robust checking for valid mod folders
+            var isDirectoryValid = true;
+
+            if (directories.Length == 0)
+            {
+                isDirectoryValid = false;
+            }
+
+            if (!isDirectoryValid)
+            {
+                Dispatcher.UIThread.Post(async () =>
+                {
+                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogModInvalidMessage]);
+                });
+                return;
+            }
+
+            foreach (var dir in directories)
+            {
+                string dirToCreate = dir.Replace(directory.Parent.ToString(), destinationDir);
+
+                // Mod already exists
+                if (Directory.Exists(dirToCreate))
+                {
+                    Dispatcher.UIThread.Post(async () =>
+                    {
+                        await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(
+                            LocaleKeys.DialogLoadFileErrorMessage,
+                            LocaleManager.Instance[LocaleKeys.DialogModAlreadyExistsMessage],
+                            dirToCreate));
+                    });
+
+                    return;
+                }
+
+                Directory.CreateDirectory(dirToCreate);
+            }
+
+            var files = Directory.GetFiles(directory.ToString(), "*", SearchOption.AllDirectories);
+
+            foreach (var file in files)
+            {
+                File.Copy(file, file.Replace(directory.Parent.ToString(), destinationDir), true);
+            }
+
+            LoadMods(_applicationId);
+        }
+
+        public async void Add()
+        {
+            var result = await _storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
+            {
+                Title = LocaleManager.Instance[LocaleKeys.SelectModDialogTitle],
+                AllowMultiple = true,
+            });
+
+            foreach (var folder in result)
+            {
+                AddMod(new DirectoryInfo(folder.Path.LocalPath));
+            }
+        }
+
+        public void DeleteAll()
+        {
+            foreach (var mod in Mods)
+            {
+                Delete(mod);
+            }
+
+            Mods.Clear();
+            OnPropertyChanged(nameof(ModCount));
+            Sort();
+        }
+
+        public void EnableAll()
+        {
+            SelectedMods = new(Mods);
+        }
+
+        public void DisableAll()
+        {
+            SelectedMods.Clear();
+        }
+    }
+}

src/Ryujinx.Ava/UI/ViewModels/SettingsViewModel.cs

@@ -48,7 +48,6 @@ namespace Ryujinx.Ava.UI.ViewModels
         private readonly List<string> _gpuIds = new();
         private KeyboardHotkeys _keyboardHotkeys;
         private int _graphicsBackendIndex;
-        private string _customThemePath;
         private int _scalingFilter;
         private int _scalingFilterLevel;
 
@@ -160,7 +159,6 @@ namespace Ryujinx.Ava.UI.ViewModels
         public bool IsOpenAlEnabled { get; set; }
         public bool IsSoundIoEnabled { get; set; }
         public bool IsSDL2Enabled { get; set; }
-        public bool EnableCustomTheme { get; set; }
         public bool IsCustomResolutionScaleActive => _resolutionScale == 4;
         public bool IsScalingFilterActive => _scalingFilter == (int)Ryujinx.Common.Configuration.ScalingFilter.Fsr;
 
@@ -170,20 +168,6 @@ namespace Ryujinx.Ava.UI.ViewModels
         public string TimeZone { get; set; }
         public string ShaderDumpPath { get; set; }
 
-        public string CustomThemePath
-        {
-            get
-            {
-                return _customThemePath;
-            }
-            set
-            {
-                _customThemePath = value;
-
-                OnPropertyChanged();
-            }
-        }
-
         public int Language { get; set; }
         public int Region { get; set; }
         public int FsGlobalAccessLogMode { get; set; }
@@ -426,8 +410,6 @@ namespace Ryujinx.Ava.UI.ViewModels
             GameDirectories.Clear();
             GameDirectories.AddRange(config.Ui.GameDirs.Value);
 
-            EnableCustomTheme = config.Ui.EnableCustomTheme;
-            CustomThemePath = config.Ui.CustomThemePath;
             BaseStyleIndex = config.Ui.BaseStyle == "Light" ? 0 : 1;
 
             // Input
@@ -515,8 +497,6 @@ namespace Ryujinx.Ava.UI.ViewModels
                 config.Ui.GameDirs.Value = gameDirs;
             }
 
-            config.Ui.EnableCustomTheme.Value = EnableCustomTheme;
-            config.Ui.CustomThemePath.Value = CustomThemePath;
             config.Ui.BaseStyle.Value = BaseStyleIndex == 0 ? "Light" : "Dark";
 
             // Input

src/Ryujinx.Ava/UI/ViewModels/TitleUpdateViewModel.cs

@@ -192,7 +192,7 @@ namespace Ryujinx.Ava.UI.ViewModels
                 }
                 catch (Exception ex)
                 {
-                    Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadNcaErrorMessage, ex.Message, path)));
+                    Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadFileErrorMessage, ex.Message, path)));
                 }
             }
         }

src/Ryujinx.Ava/UI/Views/Settings/SettingsUIView.axaml

@@ -36,7 +36,7 @@
                     <CheckBox IsChecked="{Binding ShowConfirmExit}">
                         <TextBlock Text="{locale:Locale SettingsTabGeneralShowConfirmExitDialog}" />
                     </CheckBox>
-                    <StackPanel Margin="0, 15, 0, 10" Orientation="Horizontal">
+                    <StackPanel Margin="0, 15, 0, 0" Orientation="Horizontal">
                         <TextBlock VerticalAlignment="Center"
                                    Text="{locale:Locale SettingsTabGeneralHideCursor}"
                                    Width="150" />
@@ -54,6 +54,22 @@
                             </ComboBoxItem>
                         </ComboBox>
                     </StackPanel>
+                    <StackPanel Margin="0, 15, 0, 10" Orientation="Horizontal">
+                        <TextBlock
+                            VerticalAlignment="Center"
+                            Text="{locale:Locale SettingsTabGeneralTheme}"
+                            Width="150" />
+                        <ComboBox SelectedIndex="{Binding BaseStyleIndex}"
+                                  HorizontalContentAlignment="Left"
+                                  MinWidth="100">
+                            <ComboBoxItem>
+                                <TextBlock Text="{locale:Locale SettingsTabGeneralThemeLight}" />
+                            </ComboBoxItem>
+                            <ComboBoxItem>
+                                <TextBlock Text="{locale:Locale SettingsTabGeneralThemeDark}" />
+                            </ComboBoxItem>
+                        </ComboBox>
+                    </StackPanel>
                 </StackPanel>
                 <Separator Height="1" />
                 <TextBlock Classes="h1" Text="{locale:Locale SettingsTabGeneralGameDirectories}" />
@@ -106,64 +122,6 @@
                         </Button>
                     </Grid>
                 </StackPanel>
-                <Separator Height="1" />
-                <TextBlock Classes="h1" Text="{locale:Locale SettingsTabGeneralTheme}" />
-                <Grid Margin="10,0,0,0">
-                    <Grid.ColumnDefinitions>
-                        <ColumnDefinition Width="Auto" />
-                        <ColumnDefinition />
-                        <ColumnDefinition Width="Auto" />
-                    </Grid.ColumnDefinitions>
-                    <Grid.RowDefinitions>
-                        <RowDefinition />
-                        <RowDefinition />
-                        <RowDefinition />
-                    </Grid.RowDefinitions>
-                    <CheckBox
-                        IsChecked="{Binding EnableCustomTheme}"
-                        ToolTip.Tip="{locale:Locale CustomThemeCheckTooltip}">
-                        <TextBlock Text="{locale:Locale SettingsTabGeneralThemeEnableCustomTheme}" />
-                    </CheckBox>
-                    <TextBlock
-                        Grid.Column="0"
-                        Grid.Row="1"
-                        VerticalAlignment="Center"
-                        Margin="0,10,0,0"
-                        Text="{locale:Locale SettingsTabGeneralThemeCustomTheme}"
-                        ToolTip.Tip="{locale:Locale CustomThemePathTooltip}" />
-                    <TextBox
-                        Grid.Row="1"
-                        Grid.Column="1"
-                        Margin="0,10,0,0"
-                        Text="{Binding CustomThemePath}" />
-                    <Button
-                        Grid.Row="1"
-                        Grid.Column="2"
-                        Margin="10,10,0,0"
-                        Click="BrowseTheme"
-                        ToolTip.Tip="{locale:Locale CustomThemeBrowseTooltip}"
-                        Content="{locale:Locale ButtonBrowse}" />
-                    <TextBlock
-                        Grid.Column="0"
-                        Grid.Row="2"
-                        VerticalAlignment="Center"
-                        Margin="0,10,0,0"
-                        Text="{locale:Locale SettingsTabGeneralThemeBaseStyle}" />
-                    <ComboBox
-                        Grid.Column="1"
-                        Grid.Row="2"
-                        VerticalAlignment="Center"
-                        Margin="0,10,0,0"
-                        MinWidth="100"
-                        SelectedIndex="{Binding BaseStyleIndex}">
-                        <ComboBoxItem>
-                            <TextBlock Text="{locale:Locale SettingsTabGeneralThemeBaseStyleLight}" />
-                        </ComboBoxItem>
-                        <ComboBoxItem>
-                            <TextBlock Text="{locale:Locale SettingsTabGeneralThemeBaseStyleDark}" />
-                        </ComboBoxItem>
-                    </ComboBox>
-                </Grid>
             </StackPanel>
         </Border>
     </ScrollViewer>

src/Ryujinx.Ava/UI/Views/Settings/SettingsUIView.axaml.cs

@@ -61,29 +61,5 @@ namespace Ryujinx.Ava.UI.Views.Settings
                 GameList.SelectedIndex = oldIndex < GameList.ItemCount ? oldIndex : 0;
             }
         }
-
-        public async void BrowseTheme(object sender, RoutedEventArgs e)
-        {
-            var window = this.GetVisualRoot() as Window;
-            var result = await window.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
-            {
-                Title = LocaleManager.Instance[LocaleKeys.SettingsSelectThemeFileDialogTitle],
-                AllowMultiple = false,
-                FileTypeFilter = new List<FilePickerFileType>
-                {
-                    new("xml")
-                    {
-                        Patterns = new[] { "*.xaml" },
-                        AppleUniformTypeIdentifiers = new[] { "com.ryujinx.xaml" },
-                        MimeTypes = new[] { "application/xaml+xml" },
-                    },
-                },
-            });
-
-            if (result.Count > 0)
-            {
-                ViewModel.CustomThemePath = result[0].Path.LocalPath;
-            }
-        }
     }
 }

src/Ryujinx.Ava/UI/Windows/CheatWindow.axaml.cs

@@ -41,7 +41,7 @@ namespace Ryujinx.Ava.UI.Windows
             InitializeComponent();
 
             string modsBasePath = ModLoader.GetModsBasePath();
-            string titleModsPath = ModLoader.GetTitleDir(modsBasePath, titleId);
+            string titleModsPath = ModLoader.GetApplicationDir(modsBasePath, titleId);
             ulong titleIdValue = ulong.Parse(titleId, NumberStyles.HexNumber);
 
             _enabledCheatsPath = Path.Combine(titleModsPath, "cheats", "enabled.txt");

src/Ryujinx.Ava/UI/Windows/ModManagerWindow.axaml

@@ -0,0 +1,179 @@
+<UserControl
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels"
+    xmlns:models="clr-namespace:Ryujinx.Ava.UI.Models"
+    xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
+    Width="500"
+    Height="380"
+    mc:Ignorable="d"
+    x:Class="Ryujinx.Ava.UI.Windows.ModManagerWindow"
+    x:CompileBindings="True"
+    x:DataType="viewModels:ModManagerViewModel"
+    Focusable="True">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        <Panel
+            Margin="0 0 0 10"
+            Grid.Row="0">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="Auto" />
+                    <ColumnDefinition Width="Auto" />
+                    <ColumnDefinition Width="*" />
+                </Grid.ColumnDefinitions>
+                <TextBlock
+                    Grid.Column="0"
+                    Text="{Binding ModCount}" />
+                <StackPanel
+                    Margin="10 0"
+                    Grid.Column="1"
+                    Orientation="Horizontal">
+                    <Button
+                        Name="EnableAllButton"
+                        MinWidth="90"
+                        Margin="5"
+                        Command="{ReflectionBinding EnableAll}">
+                        <TextBlock Text="{locale:Locale DlcManagerEnableAllButton}" />
+                    </Button>
+                    <Button
+                        Name="DisableAllButton"
+                        MinWidth="90"
+                        Margin="5"
+                        Command="{ReflectionBinding DisableAll}">
+                        <TextBlock Text="{locale:Locale DlcManagerDisableAllButton}" />
+                    </Button>
+                </StackPanel>
+                <TextBox
+                    Grid.Column="2"
+                    MinHeight="27"
+                    MaxHeight="27"
+                    HorizontalAlignment="Stretch"
+                    Watermark="{locale:Locale Search}"
+                    Text="{Binding Search}" />
+            </Grid>
+        </Panel>
+        <Border
+            Grid.Row="1"
+            Margin="0 0 0 24"
+            HorizontalAlignment="Stretch"
+            VerticalAlignment="Stretch"
+            BorderBrush="{DynamicResource AppListHoverBackgroundColor}"
+            BorderThickness="1"
+            CornerRadius="5"
+            Padding="2.5">
+            <ListBox
+                AutoScrollToSelectedItem="False"
+                SelectionMode="Multiple, Toggle"
+                Background="Transparent"
+                SelectionChanged="OnSelectionChanged"
+                SelectedItems="{Binding SelectedMods, Mode=TwoWay}"
+                ItemsSource="{Binding Views}">
+                <ListBox.DataTemplates>
+                    <DataTemplate
+                        DataType="models:ModModel">
+                        <Panel Margin="10">
+                            <Grid>
+                                <Grid.ColumnDefinitions>
+                                    <ColumnDefinition Width="*" />
+                                    <ColumnDefinition Width="Auto" />
+                                </Grid.ColumnDefinitions>
+                                <TextBlock
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Center"
+                                    MaxLines="2"
+                                    TextWrapping="Wrap"
+                                    TextTrimming="CharacterEllipsis"
+                                    Text="{Binding Name}" />
+                                <StackPanel
+                                    Grid.Column="1"
+                                    Spacing="10"
+                                    Orientation="Horizontal"
+                                    HorizontalAlignment="Right">
+                                    <Button
+                                        VerticalAlignment="Center"
+                                        HorizontalAlignment="Right"
+                                        Padding="10"
+                                        MinWidth="0"
+                                        MinHeight="0"
+                                        Click="OpenLocation">
+                                        <ui:SymbolIcon
+                                            Symbol="OpenFolder"
+                                            HorizontalAlignment="Center"
+                                            VerticalAlignment="Center" />
+                                    </Button>
+                                    <Button
+                                        VerticalAlignment="Center"
+                                        HorizontalAlignment="Right"
+                                        Padding="10"
+                                        MinWidth="0"
+                                        MinHeight="0"
+                                        Click="DeleteMod">
+                                        <ui:SymbolIcon
+                                            Symbol="Cancel"
+                                            HorizontalAlignment="Center"
+                                            VerticalAlignment="Center" />
+                                    </Button>
+                                </StackPanel>
+                            </Grid>
+                        </Panel>
+                    </DataTemplate>
+                </ListBox.DataTemplates>
+                <ListBox.Styles>
+                    <Style Selector="ListBoxItem">
+                        <Setter Property="Background" Value="Transparent" />
+                    </Style>
+                </ListBox.Styles>
+            </ListBox>
+        </Border>
+        <Panel
+            Grid.Row="2"
+            HorizontalAlignment="Stretch">
+            <StackPanel
+                Orientation="Horizontal"
+                Spacing="10"
+                HorizontalAlignment="Left">
+                <Button
+                    Name="AddButton"
+                    MinWidth="90"
+                    Margin="5"
+                    Command="{Binding Add}">
+                    <TextBlock Text="{locale:Locale SettingsTabGeneralAdd}" />
+                </Button>
+                <Button
+                    Name="RemoveAllButton"
+                    MinWidth="90"
+                    Margin="5"
+                    Click="DeleteAll">
+                    <TextBlock Text="{locale:Locale ModManagerDeleteAllButton}" />
+                </Button>
+            </StackPanel>
+            <StackPanel
+                Orientation="Horizontal"
+                Spacing="10"
+                HorizontalAlignment="Right">
+                <Button
+                    Name="SaveButton"
+                    MinWidth="90"
+                    Margin="5"
+                    Click="SaveAndClose">
+                    <TextBlock Text="{locale:Locale SettingsButtonSave}" />
+                </Button>
+                <Button
+                    Name="CancelButton"
+                    MinWidth="90"
+                    Margin="5"
+                    Click="Close">
+                    <TextBlock Text="{locale:Locale InputDialogCancel}" />
+                </Button>
+            </StackPanel>
+        </Panel>
+    </Grid>
+</UserControl>

src/Ryujinx.Ava/UI/Windows/ModManagerWindow.axaml.cs

@@ -0,0 +1,139 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Styling;
+using FluentAvalonia.UI.Controls;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Ava.UI.ViewModels;
+using Ryujinx.Ui.Common.Helper;
+using System.Threading.Tasks;
+using Button = Avalonia.Controls.Button;
+
+namespace Ryujinx.Ava.UI.Windows
+{
+    public partial class ModManagerWindow : UserControl
+    {
+        public ModManagerViewModel ViewModel;
+
+        public ModManagerWindow()
+        {
+            DataContext = this;
+
+            InitializeComponent();
+        }
+
+        public ModManagerWindow(ulong titleId)
+        {
+            DataContext = ViewModel = new ModManagerViewModel(titleId);
+
+            InitializeComponent();
+        }
+
+        public static async Task Show(ulong titleId, string titleName)
+        {
+            ContentDialog contentDialog = new()
+            {
+                PrimaryButtonText = "",
+                SecondaryButtonText = "",
+                CloseButtonText = "",
+                Content = new ModManagerWindow(titleId),
+                Title = string.Format(LocaleManager.Instance[LocaleKeys.ModWindowHeading], titleName, titleId.ToString("X16")),
+            };
+
+            Style bottomBorder = new(x => x.OfType<Grid>().Name("DialogSpace").Child().OfType<Border>());
+            bottomBorder.Setters.Add(new Setter(IsVisibleProperty, false));
+
+            contentDialog.Styles.Add(bottomBorder);
+
+            await contentDialog.ShowAsync();
+        }
+
+        private void SaveAndClose(object sender, RoutedEventArgs e)
+        {
+            ViewModel.Save();
+            ((ContentDialog)Parent).Hide();
+        }
+
+        private void Close(object sender, RoutedEventArgs e)
+        {
+            ((ContentDialog)Parent).Hide();
+        }
+
+        private async void DeleteMod(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button button)
+            {
+                if (button.DataContext is ModModel model)
+                {
+                    var result = await ContentDialogHelper.CreateConfirmationDialog(
+                        LocaleManager.Instance[LocaleKeys.DialogWarning],
+                        LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogModManagerDeletionWarningMessage, model.Name),
+                        LocaleManager.Instance[LocaleKeys.InputDialogYes],
+                        LocaleManager.Instance[LocaleKeys.InputDialogNo],
+                        LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
+
+                    if (result == UserResult.Yes)
+                    {
+                        ViewModel.Delete(model);
+                    }
+                }
+            }
+        }
+
+        private async void DeleteAll(object sender, RoutedEventArgs e)
+        {
+            var result = await ContentDialogHelper.CreateConfirmationDialog(
+                LocaleManager.Instance[LocaleKeys.DialogWarning],
+                LocaleManager.Instance[LocaleKeys.DialogModManagerDeletionAllWarningMessage],
+                LocaleManager.Instance[LocaleKeys.InputDialogYes],
+                LocaleManager.Instance[LocaleKeys.InputDialogNo],
+                LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
+
+            if (result == UserResult.Yes)
+            {
+                ViewModel.DeleteAll();
+            }
+        }
+
+        private void OpenLocation(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button button)
+            {
+                if (button.DataContext is ModModel model)
+                {
+                    OpenHelper.OpenFolder(model.Path);
+                }
+            }
+        }
+
+        private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            foreach (var content in e.AddedItems)
+            {
+                if (content is ModModel model)
+                {
+                    var index = ViewModel.Mods.IndexOf(model);
+
+                    if (index != -1)
+                    {
+                        ViewModel.Mods[index].Enabled = true;
+                    }
+                }
+            }
+
+            foreach (var content in e.RemovedItems)
+            {
+                if (content is ModModel model)
+                {
+                    var index = ViewModel.Mods.IndexOf(model);
+
+                    if (index != -1)
+                    {
+                        ViewModel.Mods[index].Enabled = false;
+                    }
+                }
+            }
+        }
+    }
+}

src/Ryujinx.Common/Configuration/Mod.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.Common.Configuration
+{
+    public class Mod
+    {
+        public string Name { get; set; }
+        public string Path { get; set; }
+        public bool Enabled { get; set; }
+    }
+}

src/Ryujinx.Common/Configuration/ModMetadata.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Common.Configuration
+{
+    public struct ModMetadata
+    {
+        public List<Mod> Mods { get; set; }
+
+        public ModMetadata()
+        {
+            Mods = new List<Mod>();
+        }
+    }
+}

src/Ryujinx.Common/Configuration/ModMetadataJsonSerializerContext.cs

@@ -0,0 +1,10 @@
+using System.Text.Json.Serialization;
+
+namespace Ryujinx.Common.Configuration
+{
+    [JsonSourceGenerationOptions(WriteIndented = true)]
+    [JsonSerializable(typeof(ModMetadata))]
+    public partial class ModMetadataJsonSerializerContext : JsonSerializerContext
+    {
+    }
+}

src/Ryujinx.Common/Memory/StructArrayHelpers.cs

@@ -744,6 +744,17 @@ namespace Ryujinx.Common.Memory
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
 
+    public struct Array65<T> : IArray<T> where T : unmanaged
+    {
+        T _e0;
+        Array64<T> _other;
+        public readonly int Length => 65;
+        public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
+        public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
+    }
+
     public struct Array73<T> : IArray<T> where T : unmanaged
     {
         T _e0;

src/Ryujinx.Common/Memory/StructByteArrayHelpers.cs

@@ -63,6 +63,18 @@ namespace Ryujinx.Common.Memory
         public Span<byte> AsSpan() => MemoryMarshal.CreateSpan(ref _element, Size);
     }
 
+    [StructLayout(LayoutKind.Sequential, Size = Size, Pack = 1)]
+    public struct ByteArray3000 : IArray<byte>
+    {
+        private const int Size = 3000;
+
+        byte _element;
+
+        public readonly int Length => Size;
+        public ref byte this[int index] => ref AsSpan()[index];
+        public Span<byte> AsSpan() => MemoryMarshal.CreateSpan(ref _element, Size);
+    }
+
     [StructLayout(LayoutKind.Sequential, Size = Size, Pack = 1)]
     public struct ByteArray4096 : IArray<byte>
     {

src/Ryujinx.Graphics.Device/DeviceMemoryManager.cs

@@ -0,0 +1,395 @@
+using Ryujinx.Memory;
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Device
+{
+    /// <summary>
+    /// Device memory manager.
+    /// </summary>
+    public class DeviceMemoryManager : IWritableBlock
+    {
+        private const int PtLvl0Bits = 10;
+        private const int PtLvl1Bits = 10;
+        public const int PtPageBits = 12;
+
+        private const ulong PtLvl0Size = 1UL << PtLvl0Bits;
+        private const ulong PtLvl1Size = 1UL << PtLvl1Bits;
+        public const ulong PageSize = 1UL << PtPageBits;
+
+        private const ulong PtLvl0Mask = PtLvl0Size - 1;
+        private const ulong PtLvl1Mask = PtLvl1Size - 1;
+        public const ulong PageMask = PageSize - 1;
+
+        private const int PtLvl0Bit = PtPageBits + PtLvl1Bits;
+        private const int PtLvl1Bit = PtPageBits;
+        private const int AddressSpaceBits = PtPageBits + PtLvl1Bits + PtLvl0Bits;
+
+        public const ulong PteUnmapped = ulong.MaxValue;
+
+        private readonly ulong[][] _pageTable;
+
+        private readonly IVirtualMemoryManager _physical;
+
+        /// <summary>
+        /// Creates a new instance of the GPU memory manager.
+        /// </summary>
+        /// <param name="physicalMemory">Physical memory that this memory manager will map into</param>
+        public DeviceMemoryManager(IVirtualMemoryManager physicalMemory)
+        {
+            _physical = physicalMemory;
+            _pageTable = new ulong[PtLvl0Size][];
+        }
+
+        /// <summary>
+        /// Reads data from GPU mapped memory.
+        /// </summary>
+        /// <typeparam name="T">Type of the data</typeparam>
+        /// <param name="va">GPU virtual address where the data is located</param>
+        /// <returns>The data at the specified memory location</returns>
+        public T Read<T>(ulong va) where T : unmanaged
+        {
+            int size = Unsafe.SizeOf<T>();
+
+            if (IsContiguous(va, size))
+            {
+                return _physical.Read<T>(Translate(va));
+            }
+            else
+            {
+                Span<byte> data = new byte[size];
+
+                ReadImpl(va, data);
+
+                return MemoryMarshal.Cast<byte, T>(data)[0];
+            }
+        }
+
+        /// <summary>
+        /// Gets a read-only span of data from GPU mapped memory.
+        /// </summary>
+        /// <param name="va">GPU virtual address where the data is located</param>
+        /// <param name="size">Size of the data</param>
+        /// <returns>The span of the data at the specified memory location</returns>
+        public ReadOnlySpan<byte> GetSpan(ulong va, int size)
+        {
+            if (IsContiguous(va, size))
+            {
+                return _physical.GetSpan(Translate(va), size);
+            }
+            else
+            {
+                Span<byte> data = new byte[size];
+
+                ReadImpl(va, data);
+
+                return data;
+            }
+        }
+
+        /// <summary>
+        /// Reads data from a possibly non-contiguous region of GPU mapped memory.
+        /// </summary>
+        /// <param name="va">GPU virtual address of the data</param>
+        /// <param name="data">Span to write the read data into</param>
+        private void ReadImpl(ulong va, Span<byte> data)
+        {
+            if (data.Length == 0)
+            {
+                return;
+            }
+
+            int offset = 0, size;
+
+            if ((va & PageMask) != 0)
+            {
+                ulong pa = Translate(va);
+
+                size = Math.Min(data.Length, (int)PageSize - (int)(va & PageMask));
+
+                if (pa != PteUnmapped && _physical.IsMapped(pa))
+                {
+                    _physical.GetSpan(pa, size).CopyTo(data[..size]);
+                }
+
+                offset += size;
+            }
+
+            for (; offset < data.Length; offset += size)
+            {
+                ulong pa = Translate(va + (ulong)offset);
+
+                size = Math.Min(data.Length - offset, (int)PageSize);
+
+                if (pa != PteUnmapped && _physical.IsMapped(pa))
+                {
+                    _physical.GetSpan(pa, size).CopyTo(data.Slice(offset, size));
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets a writable region from GPU mapped memory.
+        /// </summary>
+        /// <param name="va">Start address of the range</param>
+        /// <param name="size">Size in bytes to be range</param>
+        /// <returns>A writable region with the data at the specified memory location</returns>
+        public WritableRegion GetWritableRegion(ulong va, int size)
+        {
+            if (IsContiguous(va, size))
+            {
+                return _physical.GetWritableRegion(Translate(va), size, tracked: true);
+            }
+            else
+            {
+                Memory<byte> memory = new byte[size];
+
+                GetSpan(va, size).CopyTo(memory.Span);
+
+                return new WritableRegion(this, va, memory, tracked: true);
+            }
+        }
+
+        /// <summary>
+        /// Writes data to GPU mapped memory.
+        /// </summary>
+        /// <typeparam name="T">Type of the data</typeparam>
+        /// <param name="va">GPU virtual address to write the value into</param>
+        /// <param name="value">The value to be written</param>
+        public void Write<T>(ulong va, T value) where T : unmanaged
+        {
+            Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
+        }
+
+        /// <summary>
+        /// Writes data to GPU mapped memory.
+        /// </summary>
+        /// <param name="va">GPU virtual address to write the data into</param>
+        /// <param name="data">The data to be written</param>
+        public void Write(ulong va, ReadOnlySpan<byte> data)
+        {
+            if (IsContiguous(va, data.Length))
+            {
+                _physical.Write(Translate(va), data);
+            }
+            else
+            {
+                int offset = 0, size;
+
+                if ((va & PageMask) != 0)
+                {
+                    ulong pa = Translate(va);
+
+                    size = Math.Min(data.Length, (int)PageSize - (int)(va & PageMask));
+
+                    if (pa != PteUnmapped && _physical.IsMapped(pa))
+                    {
+                        _physical.Write(pa, data[..size]);
+                    }
+
+                    offset += size;
+                }
+
+                for (; offset < data.Length; offset += size)
+                {
+                    ulong pa = Translate(va + (ulong)offset);
+
+                    size = Math.Min(data.Length - offset, (int)PageSize);
+
+                    if (pa != PteUnmapped && _physical.IsMapped(pa))
+                    {
+                        _physical.Write(pa, data.Slice(offset, size));
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Writes data to GPU mapped memory without write tracking.
+        /// </summary>
+        /// <param name="va">GPU virtual address to write the data into</param>
+        /// <param name="data">The data to be written</param>
+        public void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        /// Maps a given range of pages to the specified CPU virtual address.
+        /// </summary>
+        /// <remarks>
+        /// All addresses and sizes must be page aligned.
+        /// </remarks>
+        /// <param name="pa">CPU virtual address to map into</param>
+        /// <param name="va">GPU virtual address to be mapped</param>
+        /// <param name="kind">Kind of the resource located at the mapping</param>
+        public void Map(ulong pa, ulong va, ulong size)
+        {
+            lock (_pageTable)
+            {
+                for (ulong offset = 0; offset < size; offset += PageSize)
+                {
+                    SetPte(va + offset, PackPte(pa + offset));
+                }
+            }
+        }
+
+        /// <summary>
+        /// Unmaps a given range of pages at the specified GPU virtual memory region.
+        /// </summary>
+        /// <param name="va">GPU virtual address to unmap</param>
+        /// <param name="size">Size in bytes of the region being unmapped</param>
+        public void Unmap(ulong va, ulong size)
+        {
+            lock (_pageTable)
+            {
+                for (ulong offset = 0; offset < size; offset += PageSize)
+                {
+                    SetPte(va + offset, PteUnmapped);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Checks if a region of GPU mapped memory is contiguous.
+        /// </summary>
+        /// <param name="va">GPU virtual address of the region</param>
+        /// <param name="size">Size of the region</param>
+        /// <returns>True if the region is contiguous, false otherwise</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private bool IsContiguous(ulong va, int size)
+        {
+            if (!ValidateAddress(va) || GetPte(va) == PteUnmapped)
+            {
+                return false;
+            }
+
+            ulong endVa = (va + (ulong)size + PageMask) & ~PageMask;
+
+            va &= ~PageMask;
+
+            int pages = (int)((endVa - va) / PageSize);
+
+            for (int page = 0; page < pages - 1; page++)
+            {
+                if (!ValidateAddress(va + PageSize) || GetPte(va + PageSize) == PteUnmapped)
+                {
+                    return false;
+                }
+
+                if (Translate(va) + PageSize != Translate(va + PageSize))
+                {
+                    return false;
+                }
+
+                va += PageSize;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Validates a GPU virtual address.
+        /// </summary>
+        /// <param name="va">Address to validate</param>
+        /// <returns>True if the address is valid, false otherwise</returns>
+        private static bool ValidateAddress(ulong va)
+        {
+            return va < (1UL << AddressSpaceBits);
+        }
+
+        /// <summary>
+        /// Checks if a given page is mapped.
+        /// </summary>
+        /// <param name="va">GPU virtual address of the page to check</param>
+        /// <returns>True if the page is mapped, false otherwise</returns>
+        public bool IsMapped(ulong va)
+        {
+            return Translate(va) != PteUnmapped;
+        }
+
+        /// <summary>
+        /// Translates a GPU virtual address to a CPU virtual address.
+        /// </summary>
+        /// <param name="va">GPU virtual address to be translated</param>
+        /// <returns>CPU virtual address, or <see cref="PteUnmapped"/> if unmapped</returns>
+        public ulong Translate(ulong va)
+        {
+            if (!ValidateAddress(va))
+            {
+                return PteUnmapped;
+            }
+
+            ulong pte = GetPte(va);
+
+            if (pte == PteUnmapped)
+            {
+                return PteUnmapped;
+            }
+
+            return UnpackPaFromPte(pte) + (va & PageMask);
+        }
+
+        /// <summary>
+        /// Gets the Page Table entry for a given GPU virtual address.
+        /// </summary>
+        /// <param name="va">GPU virtual address</param>
+        /// <returns>Page table entry (CPU virtual address)</returns>
+        private ulong GetPte(ulong va)
+        {
+            ulong l0 = (va >> PtLvl0Bit) & PtLvl0Mask;
+            ulong l1 = (va >> PtLvl1Bit) & PtLvl1Mask;
+
+            if (_pageTable[l0] == null)
+            {
+                return PteUnmapped;
+            }
+
+            return _pageTable[l0][l1];
+        }
+
+        /// <summary>
+        /// Sets a Page Table entry at a given GPU virtual address.
+        /// </summary>
+        /// <param name="va">GPU virtual address</param>
+        /// <param name="pte">Page table entry (CPU virtual address)</param>
+        private void SetPte(ulong va, ulong pte)
+        {
+            ulong l0 = (va >> PtLvl0Bit) & PtLvl0Mask;
+            ulong l1 = (va >> PtLvl1Bit) & PtLvl1Mask;
+
+            if (_pageTable[l0] == null)
+            {
+                _pageTable[l0] = new ulong[PtLvl1Size];
+
+                for (ulong index = 0; index < PtLvl1Size; index++)
+                {
+                    _pageTable[l0][index] = PteUnmapped;
+                }
+            }
+
+            _pageTable[l0][l1] = pte;
+        }
+
+        /// <summary>
+        /// Creates a page table entry from a physical address and kind.
+        /// </summary>
+        /// <param name="pa">Physical address</param>
+        /// <returns>Page table entry</returns>
+        private static ulong PackPte(ulong pa)
+        {
+            return pa;
+        }
+
+        /// <summary>
+        /// Unpacks physical address from a page table entry.
+        /// </summary>
+        /// <param name="pte">Page table entry</param>
+        /// <returns>Physical address</returns>
+        private static ulong UnpackPaFromPte(ulong pte)
+        {
+            return pte;
+        }
+    }
+}

src/Ryujinx.Graphics.Device/ISynchronizationManager.cs

@@ -0,0 +1,39 @@
+using Ryujinx.Common.Logging;
+using System;
+using System.Threading;
+
+namespace Ryujinx.Graphics.Device
+{
+    /// <summary>
+    /// Synchronization manager interface.
+    /// </summary>
+    public interface ISynchronizationManager
+    {
+        /// <summary>
+        /// Increment the value of a syncpoint with a given id.
+        /// </summary>
+        /// <param name="id">The id of the syncpoint</param>
+        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
+        /// <returns>The incremented value of the syncpoint</returns>
+        uint IncrementSyncpoint(uint id);
+
+        /// <summary>
+        /// Get the value of a syncpoint with a given id.
+        /// </summary>
+        /// <param name="id">The id of the syncpoint</param>
+        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
+        /// <returns>The value of the syncpoint</returns>
+        uint GetSyncpointValue(uint id);
+
+        /// <summary>
+        /// Wait on a syncpoint with a given id at a target threshold.
+        /// The callback will be called once the threshold is reached and will automatically be unregistered.
+        /// </summary>
+        /// <param name="id">The id of the syncpoint</param>
+        /// <param name="threshold">The target threshold</param>
+        /// <param name="timeout">The timeout</param>
+        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
+        /// <returns>True if timed out</returns>
+        bool WaitOnSyncpoint(uint id, uint threshold, TimeSpan timeout);
+    }
+}

src/Ryujinx.Graphics.Device/Ryujinx.Graphics.Device.csproj

@@ -4,4 +4,8 @@
     <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Ryujinx.Memory\Ryujinx.Memory.csproj" />
+  </ItemGroup>
+
 </Project>

src/Ryujinx.Graphics.GAL/HardwareInfo.cs

@@ -4,11 +4,13 @@ namespace Ryujinx.Graphics.GAL
     {
         public string GpuVendor { get; }
         public string GpuModel { get; }
+        public string GpuDriver { get; }
 
-        public HardwareInfo(string gpuVendor, string gpuModel)
+        public HardwareInfo(string gpuVendor, string gpuModel, string gpuDriver)
         {
             GpuVendor = gpuVendor;
             GpuModel = gpuModel;
+            GpuDriver = gpuDriver;
         }
     }
 }

src/Ryujinx.Graphics.Gpu/GpuContext.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Common;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.GAL;
 using Ryujinx.Graphics.Gpu.Engine.GPFifo;
 using Ryujinx.Graphics.Gpu.Memory;
@@ -163,6 +164,22 @@ namespace Ryujinx.Graphics.Gpu
             return new MemoryManager(physicalMemory);
         }
 
+        /// <summary>
+        /// Creates a new device memory manager.
+        /// </summary>
+        /// <param name="pid">ID of the process that owns the memory manager</param>
+        /// <returns>The memory manager</returns>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="pid"/> is invalid</exception>
+        public DeviceMemoryManager CreateDeviceMemoryManager(ulong pid)
+        {
+            if (!PhysicalMemoryRegistry.TryGetValue(pid, out var physicalMemory))
+            {
+                throw new ArgumentException("The PID is invalid or the process was not registered", nameof(pid));
+            }
+
+            return physicalMemory.CreateDeviceMemoryManager();
+        }
+
         /// <summary>
         /// Registers virtual memory used by a process for GPU memory access, caching and read/write tracking.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -790,8 +790,12 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                         texture = new Texture(_context, _physicalMemory, info, sizeInfo, range.Value, scaleMode);
 
+                        // If the new texture is larger than the existing one, we need to fill the remaining space with CPU data,
+                        // otherwise we only need the data that is copied from the existing texture, without loading the CPU data.
+                        bool updateNewTexture = texture.Width > overlap.Width || texture.Height > overlap.Height;
+
                         texture.InitializeGroup(true, true, new List<TextureIncompatibleOverlap>());
-                        texture.InitializeData(false, false);
+                        texture.InitializeData(false, updateNewTexture);
 
                         overlap.SynchronizeMemory();
                         overlap.CreateCopyDependency(texture, oInfo.FirstLayer, oInfo.FirstLevel, true);

src/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs

@@ -329,49 +329,6 @@ namespace Ryujinx.Graphics.Gpu.Memory
             }
         }
 
-        /// <summary>
-        /// Writes data to GPU mapped memory, stopping at the first unmapped page at the memory region, if any.
-        /// </summary>
-        /// <param name="va">GPU virtual address to write the data into</param>
-        /// <param name="data">The data to be written</param>
-        public void WriteMapped(ulong va, ReadOnlySpan<byte> data)
-        {
-            if (IsContiguous(va, data.Length))
-            {
-                Physical.Write(Translate(va), data);
-            }
-            else
-            {
-                int offset = 0, size;
-
-                if ((va & PageMask) != 0)
-                {
-                    ulong pa = Translate(va);
-
-                    size = Math.Min(data.Length, (int)PageSize - (int)(va & PageMask));
-
-                    if (pa != PteUnmapped && Physical.IsMapped(pa))
-                    {
-                        Physical.Write(pa, data[..size]);
-                    }
-
-                    offset += size;
-                }
-
-                for (; offset < data.Length; offset += size)
-                {
-                    ulong pa = Translate(va + (ulong)offset);
-
-                    size = Math.Min(data.Length - offset, (int)PageSize);
-
-                    if (pa != PteUnmapped && Physical.IsMapped(pa))
-                    {
-                        Physical.Write(pa, data.Slice(offset, size));
-                    }
-                }
-            }
-        }
-
         /// <summary>
         /// Runs remap actions that are added to an unmap event.
         /// These must run after the mapping completes.

src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Cpu;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Gpu.Image;
 using Ryujinx.Graphics.Gpu.Shader;
 using Ryujinx.Memory;
@@ -82,6 +83,15 @@ namespace Ryujinx.Graphics.Gpu.Memory
             }
         }
 
+        /// <summary>
+        /// Creates a new device memory manager.
+        /// </summary>
+        /// <returns>The memory manager</returns>
+        public DeviceMemoryManager CreateDeviceMemoryManager()
+        {
+            return new DeviceMemoryManager(_cpuMemory);
+        }
+
         /// <summary>
         /// Gets a host pointer for a given range of application memory.
         /// If the memory region is not a single contiguous block, this method returns 0.

src/Ryujinx.Graphics.Gpu/Synchronization/SynchronizationManager.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Device;
 using System;
 using System.Threading;
 
@@ -7,7 +8,7 @@ namespace Ryujinx.Graphics.Gpu.Synchronization
     /// <summary>
     /// GPU synchronization manager.
     /// </summary>
-    public class SynchronizationManager
+    public class SynchronizationManager : ISynchronizationManager
     {
         /// <summary>
         /// The maximum number of syncpoints supported by the GM20B.
@@ -29,12 +30,7 @@ namespace Ryujinx.Graphics.Gpu.Synchronization
             }
         }
 
-        /// <summary>
-        /// Increment the value of a syncpoint with a given id.
-        /// </summary>
-        /// <param name="id">The id of the syncpoint</param>
-        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
-        /// <returns>The incremented value of the syncpoint</returns>
+        /// <inheritdoc/>
         public uint IncrementSyncpoint(uint id)
         {
             ArgumentOutOfRangeException.ThrowIfGreaterThanOrEqual(id, (uint)MaxHardwareSyncpoints);
@@ -42,12 +38,7 @@ namespace Ryujinx.Graphics.Gpu.Synchronization
             return _syncpoints[id].Increment();
         }
 
-        /// <summary>
-        /// Get the value of a syncpoint with a given id.
-        /// </summary>
-        /// <param name="id">The id of the syncpoint</param>
-        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
-        /// <returns>The value of the syncpoint</returns>
+        /// <inheritdoc/>
         public uint GetSyncpointValue(uint id)
         {
             ArgumentOutOfRangeException.ThrowIfGreaterThanOrEqual(id, (uint)MaxHardwareSyncpoints);
@@ -84,15 +75,7 @@ namespace Ryujinx.Graphics.Gpu.Synchronization
             _syncpoints[id].UnregisterCallback(waiterInformation);
         }
 
-        /// <summary>
-        /// Wait on a syncpoint with a given id at a target threshold.
-        /// The callback will be called once the threshold is reached and will automatically be unregistered.
-        /// </summary>
-        /// <param name="id">The id of the syncpoint</param>
-        /// <param name="threshold">The target threshold</param>
-        /// <param name="timeout">The timeout</param>
-        /// <exception cref="System.ArgumentOutOfRangeException">Thrown when id >= MaxHardwareSyncpoints</exception>
-        /// <returns>True if timed out</returns>
+        /// <inheritdoc/>
         public bool WaitOnSyncpoint(uint id, uint threshold, TimeSpan timeout)
         {
             ArgumentOutOfRangeException.ThrowIfGreaterThanOrEqual(id, (uint)MaxHardwareSyncpoints);

src/Ryujinx.Graphics.Host1x/Host1xClass.cs

@@ -1,5 +1,4 @@
 using Ryujinx.Graphics.Device;
-using Ryujinx.Graphics.Gpu.Synchronization;
 using System.Collections.Generic;
 using System.Threading;
 
@@ -7,10 +6,10 @@ namespace Ryujinx.Graphics.Host1x
 {
     public class Host1xClass : IDeviceState
     {
-        private readonly SynchronizationManager _syncMgr;
+        private readonly ISynchronizationManager _syncMgr;
         private readonly DeviceState<Host1xClassRegisters> _state;
 
-        public Host1xClass(SynchronizationManager syncMgr)
+        public Host1xClass(ISynchronizationManager syncMgr)
         {
             _syncMgr = syncMgr;
             _state = new DeviceState<Host1xClassRegisters>(new Dictionary<string, RwCallback>

src/Ryujinx.Graphics.Host1x/Host1xDevice.cs

@@ -1,7 +1,6 @@
 using Ryujinx.Common;
 using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.Device;
-using Ryujinx.Graphics.Gpu.Synchronization;
 using System;
 using System.Numerics;
 
@@ -35,7 +34,7 @@ namespace Ryujinx.Graphics.Host1x
         private int _mask;
         private bool _incrementing;
 
-        public Host1xDevice(SynchronizationManager syncMgr)
+        public Host1xDevice(ISynchronizationManager syncMgr)
         {
             _syncptIncrMgr = new SyncptIncrManager(syncMgr);
             _commandQueue = new AsyncWorkQueue<Command>(Process, "Ryujinx.Host1xProcessor");

src/Ryujinx.Graphics.Host1x/Ryujinx.Graphics.Host1x.csproj

@@ -6,7 +6,6 @@
 
   <ItemGroup>
     <ProjectReference Include="..\Ryujinx.Graphics.Device\Ryujinx.Graphics.Device.csproj" />
-    <ProjectReference Include="..\Ryujinx.Graphics.Gpu\Ryujinx.Graphics.Gpu.csproj" />
   </ItemGroup>
 
 </Project>

src/Ryujinx.Graphics.Host1x/SyncptIncrManager.cs

@@ -1,11 +1,11 @@
-using Ryujinx.Graphics.Gpu.Synchronization;
+using Ryujinx.Graphics.Device;
 using System.Collections.Generic;
 
 namespace Ryujinx.Graphics.Host1x
 {
     class SyncptIncrManager
     {
-        private readonly SynchronizationManager _syncMgr;
+        private readonly ISynchronizationManager _syncMgr;
 
         private readonly struct SyncptIncr
         {
@@ -27,7 +27,7 @@ namespace Ryujinx.Graphics.Host1x
 
         private uint _currentId;
 
-        public SyncptIncrManager(SynchronizationManager syncMgr)
+        public SyncptIncrManager(ISynchronizationManager syncMgr)
         {
             _syncMgr = syncMgr;
         }

src/Ryujinx.Graphics.Nvdec/H264Decoder.cs

@@ -12,10 +12,10 @@ namespace Ryujinx.Graphics.Nvdec
 
         public static void Decode(NvdecDecoderContext context, ResourceManager rm, ref NvdecRegisters state)
         {
-            PictureInfo pictureInfo = rm.Gmm.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
+            PictureInfo pictureInfo = rm.MemoryManager.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
             H264PictureInfo info = pictureInfo.Convert();
 
-            ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.BitstreamSize);
+            ReadOnlySpan<byte> bitstream = rm.MemoryManager.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.BitstreamSize);
 
             int width = (int)pictureInfo.PicWidthInMbs * MbSizeInPixels;
             int height = (int)pictureInfo.PicHeightInMbs * MbSizeInPixels;
@@ -34,7 +34,7 @@ namespace Ryujinx.Graphics.Nvdec
                 if (outputSurface.Field == FrameField.Progressive)
                 {
                     SurfaceWriter.Write(
-                        rm.Gmm,
+                        rm.MemoryManager,
                         outputSurface,
                         lumaOffset + pictureInfo.LumaFrameOffset,
                         chromaOffset + pictureInfo.ChromaFrameOffset);
@@ -42,7 +42,7 @@ namespace Ryujinx.Graphics.Nvdec
                 else
                 {
                     SurfaceWriter.WriteInterlaced(
-                        rm.Gmm,
+                        rm.MemoryManager,
                         outputSurface,
                         lumaOffset + pictureInfo.LumaTopFieldOffset,
                         chromaOffset + pictureInfo.ChromaTopFieldOffset,

src/Ryujinx.Graphics.Nvdec/Image/SurfaceCache.cs

@@ -1,4 +1,4 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Video;
 using System;
 using System.Diagnostics;
@@ -27,11 +27,11 @@ namespace Ryujinx.Graphics.Nvdec.Image
 
         private readonly CacheItem[] _pool = new CacheItem[MaxItems];
 
-        private readonly MemoryManager _gmm;
+        private readonly DeviceMemoryManager _mm;
 
-        public SurfaceCache(MemoryManager gmm)
+        public SurfaceCache(DeviceMemoryManager mm)
         {
-            _gmm = gmm;
+            _mm = mm;
         }
 
         public ISurface Get(IDecoder decoder, uint lumaOffset, uint chromaOffset, int width, int height)
@@ -77,7 +77,7 @@ namespace Ryujinx.Graphics.Nvdec.Image
 
                             if ((lumaOffset | chromaOffset) != 0)
                             {
-                                SurfaceReader.Read(_gmm, surface, lumaOffset, chromaOffset);
+                                SurfaceReader.Read(_mm, surface, lumaOffset, chromaOffset);
                             }
 
                             MoveToFront(i);
@@ -100,7 +100,7 @@ namespace Ryujinx.Graphics.Nvdec.Image
 
                         if ((lumaOffset | chromaOffset) != 0)
                         {
-                            SurfaceReader.Read(_gmm, surface, lumaOffset, chromaOffset);
+                            SurfaceReader.Read(_mm, surface, lumaOffset, chromaOffset);
                         }
 
                         MoveToFront(MaxItems - 1);

src/Ryujinx.Graphics.Nvdec/Image/SurfaceReader.cs

@@ -1,5 +1,5 @@
 using Ryujinx.Common;
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Texture;
 using Ryujinx.Graphics.Video;
 using System;
@@ -11,13 +11,13 @@ namespace Ryujinx.Graphics.Nvdec.Image
 {
     static class SurfaceReader
     {
-        public static void Read(MemoryManager gmm, ISurface surface, uint lumaOffset, uint chromaOffset)
+        public static void Read(DeviceMemoryManager mm, ISurface surface, uint lumaOffset, uint chromaOffset)
         {
             int width = surface.Width;
             int height = surface.Height;
             int stride = surface.Stride;
 
-            ReadOnlySpan<byte> luma = gmm.DeviceGetSpan(lumaOffset, GetBlockLinearSize(width, height, 1));
+            ReadOnlySpan<byte> luma = mm.DeviceGetSpan(lumaOffset, GetBlockLinearSize(width, height, 1));
 
             ReadLuma(surface.YPlane.AsSpan(), luma, stride, width, height);
 
@@ -25,7 +25,7 @@ namespace Ryujinx.Graphics.Nvdec.Image
             int uvHeight = surface.UvHeight;
             int uvStride = surface.UvStride;
 
-            ReadOnlySpan<byte> chroma = gmm.DeviceGetSpan(chromaOffset, GetBlockLinearSize(uvWidth, uvHeight, 2));
+            ReadOnlySpan<byte> chroma = mm.DeviceGetSpan(chromaOffset, GetBlockLinearSize(uvWidth, uvHeight, 2));
 
             ReadChroma(surface.UPlane.AsSpan(), surface.VPlane.AsSpan(), chroma, uvStride, uvWidth, uvHeight);
         }

src/Ryujinx.Graphics.Nvdec/Image/SurfaceWriter.cs

@@ -1,5 +1,5 @@
 using Ryujinx.Common;
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Texture;
 using Ryujinx.Graphics.Video;
 using System;
@@ -12,11 +12,11 @@ namespace Ryujinx.Graphics.Nvdec.Image
 {
     static class SurfaceWriter
     {
-        public static void Write(MemoryManager gmm, ISurface surface, uint lumaOffset, uint chromaOffset)
+        public static void Write(DeviceMemoryManager mm, ISurface surface, uint lumaOffset, uint chromaOffset)
         {
             int lumaSize = GetBlockLinearSize(surface.Width, surface.Height, 1);
 
-            using var luma = gmm.GetWritableRegion(ExtendOffset(lumaOffset), lumaSize);
+            using var luma = mm.GetWritableRegion(ExtendOffset(lumaOffset), lumaSize);
 
             WriteLuma(
                 luma.Memory.Span,
@@ -27,7 +27,7 @@ namespace Ryujinx.Graphics.Nvdec.Image
 
             int chromaSize = GetBlockLinearSize(surface.UvWidth, surface.UvHeight, 2);
 
-            using var chroma = gmm.GetWritableRegion(ExtendOffset(chromaOffset), chromaSize);
+            using var chroma = mm.GetWritableRegion(ExtendOffset(chromaOffset), chromaSize);
 
             WriteChroma(
                 chroma.Memory.Span,
@@ -39,7 +39,7 @@ namespace Ryujinx.Graphics.Nvdec.Image
         }
 
         public static void WriteInterlaced(
-            MemoryManager gmm,
+            DeviceMemoryManager mm,
             ISurface surface,
             uint lumaTopOffset,
             uint chromaTopOffset,
@@ -48,8 +48,8 @@ namespace Ryujinx.Graphics.Nvdec.Image
         {
             int lumaSize = GetBlockLinearSize(surface.Width, surface.Height / 2, 1);
 
-            using var lumaTop = gmm.GetWritableRegion(ExtendOffset(lumaTopOffset), lumaSize);
-            using var lumaBottom = gmm.GetWritableRegion(ExtendOffset(lumaBottomOffset), lumaSize);
+            using var lumaTop = mm.GetWritableRegion(ExtendOffset(lumaTopOffset), lumaSize);
+            using var lumaBottom = mm.GetWritableRegion(ExtendOffset(lumaBottomOffset), lumaSize);
 
             WriteLuma(
                 lumaTop.Memory.Span,
@@ -67,8 +67,8 @@ namespace Ryujinx.Graphics.Nvdec.Image
 
             int chromaSize = GetBlockLinearSize(surface.UvWidth, surface.UvHeight / 2, 2);
 
-            using var chromaTop = gmm.GetWritableRegion(ExtendOffset(chromaTopOffset), chromaSize);
-            using var chromaBottom = gmm.GetWritableRegion(ExtendOffset(chromaBottomOffset), chromaSize);
+            using var chromaTop = mm.GetWritableRegion(ExtendOffset(chromaTopOffset), chromaSize);
+            using var chromaBottom = mm.GetWritableRegion(ExtendOffset(chromaBottomOffset), chromaSize);
 
             WriteChroma(
                 chromaTop.Memory.Span,

src/Ryujinx.Graphics.Nvdec/MemoryExtensions.cs

@@ -1,23 +1,23 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using System;
 
 namespace Ryujinx.Graphics.Nvdec
 {
     static class MemoryExtensions
     {
-        public static T DeviceRead<T>(this MemoryManager gmm, uint offset) where T : unmanaged
+        public static T DeviceRead<T>(this DeviceMemoryManager gmm, uint offset) where T : unmanaged
         {
-            return gmm.Read<T>((ulong)offset << 8);
+            return gmm.Read<T>(ExtendOffset(offset));
         }
 
-        public static ReadOnlySpan<byte> DeviceGetSpan(this MemoryManager gmm, uint offset, int size)
+        public static ReadOnlySpan<byte> DeviceGetSpan(this DeviceMemoryManager gmm, uint offset, int size)
         {
-            return gmm.GetSpan((ulong)offset << 8, size);
+            return gmm.GetSpan(ExtendOffset(offset), size);
         }
 
-        public static void DeviceWrite(this MemoryManager gmm, uint offset, ReadOnlySpan<byte> data)
+        public static void DeviceWrite(this DeviceMemoryManager gmm, uint offset, ReadOnlySpan<byte> data)
         {
-            gmm.Write((ulong)offset << 8, data);
+            gmm.Write(ExtendOffset(offset), data);
         }
 
         public static ulong ExtendOffset(uint offset)

src/Ryujinx.Graphics.Nvdec/NvdecDevice.cs

@@ -1,6 +1,5 @@
 using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.Device;
-using Ryujinx.Graphics.Gpu.Memory;
 using Ryujinx.Graphics.Nvdec.Image;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
@@ -17,9 +16,9 @@ namespace Ryujinx.Graphics.Nvdec
         private readonly ConcurrentDictionary<long, NvdecDecoderContext> _contexts;
         private NvdecDecoderContext _currentContext;
 
-        public NvdecDevice(MemoryManager gmm)
+        public NvdecDevice(DeviceMemoryManager mm)
         {
-            _rm = new ResourceManager(gmm, new SurfaceCache(gmm));
+            _rm = new ResourceManager(mm, new SurfaceCache(mm));
             _state = new DeviceState<NvdecRegisters>(new Dictionary<string, RwCallback>
             {
                 { nameof(NvdecRegisters.Execute), new RwCallback(Execute, null) },

src/Ryujinx.Graphics.Nvdec/ResourceManager.cs

@@ -1,16 +1,16 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Nvdec.Image;
 
 namespace Ryujinx.Graphics.Nvdec
 {
     readonly struct ResourceManager
     {
-        public MemoryManager Gmm { get; }
+        public DeviceMemoryManager MemoryManager { get; }
         public SurfaceCache Cache { get; }
 
-        public ResourceManager(MemoryManager gmm, SurfaceCache cache)
+        public ResourceManager(DeviceMemoryManager mm, SurfaceCache cache)
         {
-            Gmm = gmm;
+            MemoryManager = mm;
             Cache = cache;
         }
     }

src/Ryujinx.Graphics.Nvdec/Ryujinx.Graphics.Nvdec.csproj

@@ -8,7 +8,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Ryujinx.Common\Ryujinx.Common.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Device\Ryujinx.Graphics.Device.csproj" />
-    <ProjectReference Include="..\Ryujinx.Graphics.Gpu\Ryujinx.Graphics.Gpu.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Nvdec.FFmpeg\Ryujinx.Graphics.Nvdec.FFmpeg.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Nvdec.Vp9\Ryujinx.Graphics.Nvdec.Vp9.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Texture\Ryujinx.Graphics.Texture.csproj" />

src/Ryujinx.Graphics.Nvdec/Vp8Decoder.cs

@@ -10,8 +10,8 @@ namespace Ryujinx.Graphics.Nvdec
     {
         public static void Decode(NvdecDecoderContext context, ResourceManager rm, ref NvdecRegisters state)
         {
-            PictureInfo pictureInfo = rm.Gmm.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
-            ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.VLDBufferSize);
+            PictureInfo pictureInfo = rm.MemoryManager.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
+            ReadOnlySpan<byte> bitstream = rm.MemoryManager.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.VLDBufferSize);
 
             Decoder decoder = context.GetVp8Decoder();
 
@@ -24,7 +24,7 @@ namespace Ryujinx.Graphics.Nvdec
 
             if (decoder.Decode(ref info, outputSurface, bitstream))
             {
-                SurfaceWriter.Write(rm.Gmm, outputSurface, lumaOffset, chromaOffset);
+                SurfaceWriter.Write(rm.MemoryManager, outputSurface, lumaOffset, chromaOffset);
             }
 
             rm.Cache.Put(outputSurface);

src/Ryujinx.Graphics.Nvdec/Vp9Decoder.cs

@@ -1,5 +1,5 @@
 using Ryujinx.Common;
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Nvdec.Image;
 using Ryujinx.Graphics.Nvdec.Types.Vp9;
 using Ryujinx.Graphics.Nvdec.Vp9;
@@ -17,8 +17,8 @@ namespace Ryujinx.Graphics.Nvdec
 
         public unsafe static void Decode(ResourceManager rm, ref NvdecRegisters state)
         {
-            PictureInfo pictureInfo = rm.Gmm.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
-            EntropyProbs entropy = rm.Gmm.DeviceRead<EntropyProbs>(state.Vp9SetProbTabBufOffset);
+            PictureInfo pictureInfo = rm.MemoryManager.DeviceRead<PictureInfo>(state.SetDrvPicSetupOffset);
+            EntropyProbs entropy = rm.MemoryManager.DeviceRead<EntropyProbs>(state.Vp9SetProbTabBufOffset);
 
             ISurface Rent(uint lumaOffset, uint chromaOffset, FrameSize size)
             {
@@ -38,19 +38,19 @@ namespace Ryujinx.Graphics.Nvdec
 
             entropy.Convert(ref info.Entropy);
 
-            ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.BitstreamSize);
+            ReadOnlySpan<byte> bitstream = rm.MemoryManager.DeviceGetSpan(state.SetInBufBaseOffset, (int)pictureInfo.BitstreamSize);
 
             ReadOnlySpan<Vp9MvRef> mvsIn = ReadOnlySpan<Vp9MvRef>.Empty;
 
             if (info.UsePrevInFindMvRefs)
             {
-                mvsIn = GetMvsInput(rm.Gmm, pictureInfo.CurrentFrameSize, state.Vp9SetColMvReadBufOffset);
+                mvsIn = GetMvsInput(rm.MemoryManager, pictureInfo.CurrentFrameSize, state.Vp9SetColMvReadBufOffset);
             }
 
             int miCols = BitUtils.DivRoundUp(pictureInfo.CurrentFrameSize.Width, 8);
             int miRows = BitUtils.DivRoundUp(pictureInfo.CurrentFrameSize.Height, 8);
 
-            using var mvsRegion = rm.Gmm.GetWritableRegion(ExtendOffset(state.Vp9SetColMvWriteBufOffset), miRows * miCols * 16);
+            using var mvsRegion = rm.MemoryManager.GetWritableRegion(ExtendOffset(state.Vp9SetColMvWriteBufOffset), miRows * miCols * 16);
 
             Span<Vp9MvRef> mvsOut = MemoryMarshal.Cast<byte, Vp9MvRef>(mvsRegion.Memory.Span);
 
@@ -59,10 +59,10 @@ namespace Ryujinx.Graphics.Nvdec
 
             if (_decoder.Decode(ref info, currentSurface, bitstream, mvsIn, mvsOut))
             {
-                SurfaceWriter.Write(rm.Gmm, currentSurface, lumaOffset, chromaOffset);
+                SurfaceWriter.Write(rm.MemoryManager, currentSurface, lumaOffset, chromaOffset);
             }
 
-            WriteBackwardUpdates(rm.Gmm, state.Vp9SetCtxCounterBufOffset, ref info.BackwardUpdateCounts);
+            WriteBackwardUpdates(rm.MemoryManager, state.Vp9SetCtxCounterBufOffset, ref info.BackwardUpdateCounts);
 
             rm.Cache.Put(lastSurface);
             rm.Cache.Put(goldenSurface);
@@ -70,17 +70,17 @@ namespace Ryujinx.Graphics.Nvdec
             rm.Cache.Put(currentSurface);
         }
 
-        private static ReadOnlySpan<Vp9MvRef> GetMvsInput(MemoryManager gmm, FrameSize size, uint offset)
+        private static ReadOnlySpan<Vp9MvRef> GetMvsInput(DeviceMemoryManager mm, FrameSize size, uint offset)
         {
             int miCols = BitUtils.DivRoundUp(size.Width, 8);
             int miRows = BitUtils.DivRoundUp(size.Height, 8);
 
-            return MemoryMarshal.Cast<byte, Vp9MvRef>(gmm.DeviceGetSpan(offset, miRows * miCols * 16));
+            return MemoryMarshal.Cast<byte, Vp9MvRef>(mm.DeviceGetSpan(offset, miRows * miCols * 16));
         }
 
-        private static void WriteBackwardUpdates(MemoryManager gmm, uint offset, ref Vp9BackwardUpdates counts)
+        private static void WriteBackwardUpdates(DeviceMemoryManager mm, uint offset, ref Vp9BackwardUpdates counts)
         {
-            using var backwardUpdatesRegion = gmm.GetWritableRegion(ExtendOffset(offset), Unsafe.SizeOf<BackwardUpdates>());
+            using var backwardUpdatesRegion = mm.GetWritableRegion(ExtendOffset(offset), Unsafe.SizeOf<BackwardUpdates>());
 
             ref var backwardUpdates = ref MemoryMarshal.Cast<byte, BackwardUpdates>(backwardUpdatesRegion.Memory.Span)[0];
 

src/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs

@@ -121,7 +121,7 @@ namespace Ryujinx.Graphics.OpenGL
 
         public HardwareInfo GetHardwareInfo()
         {
-            return new HardwareInfo(GpuVendor, GpuRenderer);
+            return new HardwareInfo(GpuVendor, GpuRenderer, GpuVendor); // OpenGL does not provide a driver name, vendor name is closest analogue.
         }
 
         public PinnedSpan<byte> GetBufferData(BufferHandle buffer, int offset, int size)

src/Ryujinx.Graphics.Vic/Image/SurfaceReader.cs

@@ -454,7 +454,7 @@ namespace Ryujinx.Graphics.Vic.Image
             int srcStride = GetPitch(width, bytesPerPixel);
             int inSize = srcStride * height;
 
-            ReadOnlySpan<byte> src = rm.Gmm.GetSpan(ExtendOffset(offset), inSize);
+            ReadOnlySpan<byte> src = rm.MemoryManager.GetSpan(ExtendOffset(offset), inSize);
 
             int outSize = dstStride * height;
             int bufferIndex = rm.BufferPool.RentMinimum(outSize, out byte[] buffer);
@@ -481,7 +481,7 @@ namespace Ryujinx.Graphics.Vic.Image
         {
             int inSize = GetBlockLinearSize(width, height, bytesPerPixel, gobBlocksInY);
 
-            ReadOnlySpan<byte> src = rm.Gmm.GetSpan(ExtendOffset(offset), inSize);
+            ReadOnlySpan<byte> src = rm.MemoryManager.GetSpan(ExtendOffset(offset), inSize);
 
             int outSize = dstStride * height;
             int bufferIndex = rm.BufferPool.RentMinimum(outSize, out byte[] buffer);

src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs

@@ -636,7 +636,7 @@ namespace Ryujinx.Graphics.Vic.Image
         {
             if (linear)
             {
-                rm.Gmm.WriteMapped(ExtendOffset(offset), src);
+                rm.MemoryManager.Write(ExtendOffset(offset), src);
                 return;
             }
 
@@ -659,7 +659,7 @@ namespace Ryujinx.Graphics.Vic.Image
 
             LayoutConverter.ConvertLinearToBlockLinear(dst, width, height, dstStride, bytesPerPixel, gobBlocksInY, src);
 
-            rm.Gmm.WriteMapped(ExtendOffset(offset), dst);
+            rm.MemoryManager.Write(ExtendOffset(offset), dst);
 
             rm.BufferPool.Return(dstIndex);
         }

src/Ryujinx.Graphics.Vic/ResourceManager.cs

@@ -1,17 +1,17 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Vic.Image;
 
 namespace Ryujinx.Graphics.Vic
 {
     readonly struct ResourceManager
     {
-        public MemoryManager Gmm { get; }
+        public DeviceMemoryManager MemoryManager { get; }
         public BufferPool<Pixel> SurfacePool { get; }
         public BufferPool<byte> BufferPool { get; }
 
-        public ResourceManager(MemoryManager gmm, BufferPool<Pixel> surfacePool, BufferPool<byte> bufferPool)
+        public ResourceManager(DeviceMemoryManager mm, BufferPool<Pixel> surfacePool, BufferPool<byte> bufferPool)
         {
-            Gmm = gmm;
+            MemoryManager = mm;
             SurfacePool = surfacePool;
             BufferPool = bufferPool;
         }

src/Ryujinx.Graphics.Vic/Ryujinx.Graphics.Vic.csproj

@@ -8,7 +8,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Ryujinx.Common\Ryujinx.Common.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Device\Ryujinx.Graphics.Device.csproj" />
-    <ProjectReference Include="..\Ryujinx.Graphics.Gpu\Ryujinx.Graphics.Gpu.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Host1x\Ryujinx.Graphics.Host1x.csproj" />
     <ProjectReference Include="..\Ryujinx.Graphics.Texture\Ryujinx.Graphics.Texture.csproj" />
   </ItemGroup>

src/Ryujinx.Graphics.Vic/VicDevice.cs

@@ -1,5 +1,4 @@
 using Ryujinx.Graphics.Device;
-using Ryujinx.Graphics.Gpu.Memory;
 using Ryujinx.Graphics.Vic.Image;
 using Ryujinx.Graphics.Vic.Types;
 using System;
@@ -9,14 +8,14 @@ namespace Ryujinx.Graphics.Vic
 {
     public class VicDevice : IDeviceState
     {
-        private readonly MemoryManager _gmm;
+        private readonly DeviceMemoryManager _mm;
         private readonly ResourceManager _rm;
         private readonly DeviceState<VicRegisters> _state;
 
-        public VicDevice(MemoryManager gmm)
+        public VicDevice(DeviceMemoryManager mm)
         {
-            _gmm = gmm;
-            _rm = new ResourceManager(gmm, new BufferPool<Pixel>(), new BufferPool<byte>());
+            _mm = mm;
+            _rm = new ResourceManager(mm, new BufferPool<Pixel>(), new BufferPool<byte>());
             _state = new DeviceState<VicRegisters>(new Dictionary<string, RwCallback>
             {
                 { nameof(VicRegisters.Execute), new RwCallback(Execute, null) },
@@ -68,7 +67,7 @@ namespace Ryujinx.Graphics.Vic
 
         private T ReadIndirect<T>(uint offset) where T : unmanaged
         {
-            return _gmm.Read<T>((ulong)offset << 8);
+            return _mm.Read<T>((ulong)offset << 8);
         }
     }
 }

src/Ryujinx.Graphics.Vulkan/BufferHolder.cs

@@ -4,6 +4,7 @@ using Silk.NET.Vulkan;
 using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
 using System.Threading;
 using VkBuffer = Silk.NET.Vulkan.Buffer;
 using VkFormat = Silk.NET.Vulkan.Format;
@@ -384,7 +385,7 @@ namespace Ryujinx.Graphics.Vulkan
             var baseData = new Span<byte>((void*)(_map + offset), size);
             var modData = _pendingData.AsSpan(offset, size);
 
-            StagingBufferReserved? newMirror = _gd.BufferManager.StagingBuffer.TryReserveData(cbs, size, (int)_gd.Capabilities.MinResourceAlignment);
+            StagingBufferReserved? newMirror = _gd.BufferManager.StagingBuffer.TryReserveData(cbs, size);
 
             if (newMirror != null)
             {
@@ -838,6 +839,11 @@ namespace Ryujinx.Graphics.Vulkan
             }
         }
 
+        public unsafe void SetDataUnchecked<T>(int offset, ReadOnlySpan<T> data) where T : unmanaged
+        {
+            SetDataUnchecked(offset, MemoryMarshal.AsBytes(data));
+        }
+
         public void SetDataInline(CommandBufferScoped cbs, Action endRenderPass, int dstOffset, ReadOnlySpan<byte> data)
         {
             if (!TryPushData(cbs, endRenderPass, dstOffset, data))

src/Ryujinx.Graphics.Vulkan/BufferManager.cs

@@ -9,6 +9,36 @@ using VkFormat = Silk.NET.Vulkan.Format;
 
 namespace Ryujinx.Graphics.Vulkan
 {
+    readonly struct ScopedTemporaryBuffer : IDisposable
+    {
+        private readonly BufferManager _bufferManager;
+        private readonly bool _isReserved;
+
+        public readonly BufferRange Range;
+        public readonly BufferHolder Holder;
+
+        public BufferHandle Handle => Range.Handle;
+        public int Offset => Range.Offset;
+
+        public ScopedTemporaryBuffer(BufferManager bufferManager, BufferHolder holder, BufferHandle handle, int offset, int size, bool isReserved)
+        {
+            _bufferManager = bufferManager;
+
+            Range = new BufferRange(handle, offset, size);
+            Holder = holder;
+
+            _isReserved = isReserved;
+        }
+
+        public void Dispose()
+        {
+            if (!_isReserved)
+            {
+                _bufferManager.Delete(Range.Handle);
+            }
+        }
+    }
+
     class BufferManager : IDisposable
     {
         public const MemoryPropertyFlags DefaultBufferMemoryFlags =
@@ -238,6 +268,23 @@ namespace Ryujinx.Graphics.Vulkan
             return Unsafe.As<ulong, BufferHandle>(ref handle64);
         }
 
+        public ScopedTemporaryBuffer ReserveOrCreate(VulkanRenderer gd, CommandBufferScoped cbs, int size)
+        {
+            StagingBufferReserved? result = StagingBuffer.TryReserveData(cbs, size);
+
+            if (result.HasValue)
+            {
+                return new ScopedTemporaryBuffer(this, result.Value.Buffer, StagingBuffer.Handle, result.Value.Offset, result.Value.Size, true);
+            }
+            else
+            {
+                // Create a temporary buffer.
+                BufferHandle handle = CreateWithHandle(gd, size, out BufferHolder holder);
+
+                return new ScopedTemporaryBuffer(this, holder, handle, 0, size, false);
+            }
+        }
+
         public unsafe MemoryRequirements GetHostImportedUsageRequirements(VulkanRenderer gd)
         {
             var usage = HostImportedBufferUsageFlags;
@@ -635,13 +682,14 @@ namespace Ryujinx.Graphics.Vulkan
         {
             if (disposing)
             {
+                StagingBuffer.Dispose();
+
                 foreach (BufferHolder buffer in _buffers)
                 {
                     buffer.Dispose();
                 }
 
                 _buffers.Clear();
-                StagingBuffer.Dispose();
             }
         }
 

src/Ryujinx.Graphics.Vulkan/Effects/FsrScalingFilter.cs

@@ -142,19 +142,18 @@ namespace Ryujinx.Graphics.Vulkan.Effects
             };
 
             int rangeSize = dimensionsBuffer.Length * sizeof(float);
-            var bufferHandle = _renderer.BufferManager.CreateWithHandle(_renderer, rangeSize);
-            _renderer.BufferManager.SetData(bufferHandle, 0, dimensionsBuffer);
+            using var buffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, rangeSize);
+            buffer.Holder.SetDataUnchecked(buffer.Offset, dimensionsBuffer);
 
-            ReadOnlySpan<float> sharpeningBuffer = stackalloc float[] { 1.5f - (Level * 0.01f * 1.5f) };
-            var sharpeningBufferHandle = _renderer.BufferManager.CreateWithHandle(_renderer, sizeof(float));
-            _renderer.BufferManager.SetData(sharpeningBufferHandle, 0, sharpeningBuffer);
+            ReadOnlySpan<float> sharpeningBufferData = stackalloc float[] { 1.5f - (Level * 0.01f * 1.5f) };
+            using var sharpeningBuffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, sizeof(float));
+            sharpeningBuffer.Holder.SetDataUnchecked(sharpeningBuffer.Offset, sharpeningBufferData);
 
             int threadGroupWorkRegionDim = 16;
             int dispatchX = (width + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchY = (height + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
-            var bufferRanges = new BufferRange(bufferHandle, 0, rangeSize);
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, bufferRanges) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, buffer.Range) });
             _pipeline.SetImage(0, _intermediaryTexture, FormatTable.ConvertRgba8SrgbToUnorm(view.Info.Format));
             _pipeline.DispatchCompute(dispatchX, dispatchY, 1);
             _pipeline.ComputeBarrier();
@@ -162,16 +161,12 @@ namespace Ryujinx.Graphics.Vulkan.Effects
             // Sharpening pass
             _pipeline.SetProgram(_sharpeningProgram);
             _pipeline.SetTextureAndSampler(ShaderStage.Compute, 1, _intermediaryTexture, _sampler);
-            var sharpeningRange = new BufferRange(sharpeningBufferHandle, 0, sizeof(float));
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(4, sharpeningRange) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(4, sharpeningBuffer.Range) });
             _pipeline.SetImage(0, destinationTexture);
             _pipeline.DispatchCompute(dispatchX, dispatchY, 1);
             _pipeline.ComputeBarrier();
 
             _pipeline.Finish();
-
-            _renderer.BufferManager.Delete(bufferHandle);
-            _renderer.BufferManager.Delete(sharpeningBufferHandle);
         }
     }
 }

src/Ryujinx.Graphics.Vulkan/Effects/FxaaPostProcessingEffect.cs

@@ -66,12 +66,11 @@ namespace Ryujinx.Graphics.Vulkan.Effects
 
             ReadOnlySpan<float> resolutionBuffer = stackalloc float[] { view.Width, view.Height };
             int rangeSize = resolutionBuffer.Length * sizeof(float);
-            var bufferHandle = _renderer.BufferManager.CreateWithHandle(_renderer, rangeSize);
+            using var buffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, rangeSize);
 
-            _renderer.BufferManager.SetData(bufferHandle, 0, resolutionBuffer);
+            buffer.Holder.SetDataUnchecked(buffer.Offset, resolutionBuffer);
 
-            var bufferRanges = new BufferRange(bufferHandle, 0, rangeSize);
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, bufferRanges) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, buffer.Range) });
 
             var dispatchX = BitUtils.DivRoundUp(view.Width, IPostProcessingEffect.LocalGroupSize);
             var dispatchY = BitUtils.DivRoundUp(view.Height, IPostProcessingEffect.LocalGroupSize);
@@ -79,7 +78,6 @@ namespace Ryujinx.Graphics.Vulkan.Effects
             _pipeline.SetImage(0, _texture, FormatTable.ConvertRgba8SrgbToUnorm(view.Info.Format));
             _pipeline.DispatchCompute(dispatchX, dispatchY, 1);
 
-            _renderer.BufferManager.Delete(bufferHandle);
             _pipeline.ComputeBarrier();
 
             _pipeline.Finish();

src/Ryujinx.Graphics.Vulkan/Effects/SmaaPostProcessingEffect.cs

@@ -215,11 +215,10 @@ namespace Ryujinx.Graphics.Vulkan.Effects
 
             ReadOnlySpan<float> resolutionBuffer = stackalloc float[] { view.Width, view.Height };
             int rangeSize = resolutionBuffer.Length * sizeof(float);
-            var bufferHandle = _renderer.BufferManager.CreateWithHandle(_renderer, rangeSize);
+            using var buffer = _renderer.BufferManager.ReserveOrCreate(_renderer, cbs, rangeSize);
 
-            _renderer.BufferManager.SetData(bufferHandle, 0, resolutionBuffer);
-            var bufferRanges = new BufferRange(bufferHandle, 0, rangeSize);
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, bufferRanges) });
+            buffer.Holder.SetDataUnchecked(buffer.Offset, resolutionBuffer);
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(2, buffer.Range) });
             _pipeline.SetImage(0, _edgeOutputTexture, FormatTable.ConvertRgba8SrgbToUnorm(view.Info.Format));
             _pipeline.DispatchCompute(dispatchX, dispatchY, 1);
             _pipeline.ComputeBarrier();
@@ -245,8 +244,6 @@ namespace Ryujinx.Graphics.Vulkan.Effects
 
             _pipeline.Finish();
 
-            _renderer.BufferManager.Delete(bufferHandle);
-
             return _outputTexture;
         }
 

src/Ryujinx.Graphics.Vulkan/HelperShader.cs

@@ -430,11 +430,11 @@ namespace Ryujinx.Graphics.Vulkan
                 (region[2], region[3]) = (region[3], region[2]);
             }
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, RegionBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, RegionBufferSize);
 
-            gd.BufferManager.SetData<float>(bufferHandle, 0, region);
+            buffer.Holder.SetDataUnchecked<float>(buffer.Offset, region);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, RegionBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, buffer.Range) });
 
             Span<Viewport> viewports = stackalloc Viewport[1];
 
@@ -490,8 +490,6 @@ namespace Ryujinx.Graphics.Vulkan
             }
 
             _pipeline.Finish(gd, cbs);
-
-            gd.BufferManager.Delete(bufferHandle);
         }
 
         private void BlitDepthStencil(
@@ -527,11 +525,11 @@ namespace Ryujinx.Graphics.Vulkan
                 (region[2], region[3]) = (region[3], region[2]);
             }
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, RegionBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, RegionBufferSize);
 
-            gd.BufferManager.SetData<float>(bufferHandle, 0, region);
+            buffer.Holder.SetDataUnchecked<float>(buffer.Offset, region);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, RegionBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, buffer.Range) });
 
             Span<Viewport> viewports = stackalloc Viewport[1];
 
@@ -582,8 +580,6 @@ namespace Ryujinx.Graphics.Vulkan
             }
 
             _pipeline.Finish(gd, cbs);
-
-            gd.BufferManager.Delete(bufferHandle);
         }
 
         private static TextureView CreateDepthOrStencilView(TextureView depthStencilTexture, DepthStencilMode depthStencilMode)
@@ -681,11 +677,11 @@ namespace Ryujinx.Graphics.Vulkan
 
             _pipeline.SetCommandBuffer(cbs);
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ClearColorBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ClearColorBufferSize);
 
-            gd.BufferManager.SetData(bufferHandle, 0, clearColor);
+            buffer.Holder.SetDataUnchecked(buffer.Offset, clearColor);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, ClearColorBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, buffer.Range) });
 
             Span<Viewport> viewports = stackalloc Viewport[1];
 
@@ -721,8 +717,6 @@ namespace Ryujinx.Graphics.Vulkan
             _pipeline.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
             _pipeline.Draw(4, 1, 0, 0);
             _pipeline.Finish();
-
-            gd.BufferManager.Delete(bufferHandle);
         }
 
         public void Clear(
@@ -745,11 +739,11 @@ namespace Ryujinx.Graphics.Vulkan
 
             _pipeline.SetCommandBuffer(cbs);
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ClearColorBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ClearColorBufferSize);
 
-            gd.BufferManager.SetData<float>(bufferHandle, 0, stackalloc float[] { depthValue });
+            buffer.Holder.SetDataUnchecked<float>(buffer.Offset, stackalloc float[] { depthValue });
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, ClearColorBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, buffer.Range) });
 
             Span<Viewport> viewports = stackalloc Viewport[1];
 
@@ -771,8 +765,6 @@ namespace Ryujinx.Graphics.Vulkan
             _pipeline.SetStencilTest(CreateStencilTestDescriptor(stencilMask != 0, stencilValue, 0xff, stencilMask));
             _pipeline.Draw(4, 1, 0, 0);
             _pipeline.Finish();
-
-            gd.BufferManager.Delete(bufferHandle);
         }
 
         public void DrawTexture(
@@ -878,13 +870,13 @@ namespace Ryujinx.Graphics.Vulkan
                 shaderParams[2] = size;
                 shaderParams[3] = srcOffset;
 
-                var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+                using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
 
-                gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+                buffer.Holder.SetDataUnchecked<int>(buffer.Offset, shaderParams);
 
                 _pipeline.SetCommandBuffer(cbs);
 
-                _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+                _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, buffer.Range) });
 
                 Span<Auto<DisposableBuffer>> sbRanges = new Auto<DisposableBuffer>[2];
 
@@ -896,8 +888,6 @@ namespace Ryujinx.Graphics.Vulkan
                 _pipeline.SetProgram(_programStrideChange);
                 _pipeline.DispatchCompute(1 + elems / ConvertElementsPerWorkgroup, 1, 1);
 
-                gd.BufferManager.Delete(bufferHandle);
-
                 _pipeline.Finish(gd, cbs);
             }
             else
@@ -1025,7 +1015,7 @@ namespace Ryujinx.Graphics.Vulkan
         {
             const int ParamsBufferSize = 4;
 
-            Span<int> shaderParams = stackalloc int[sizeof(int)];
+            Span<int> shaderParams = stackalloc int[ParamsBufferSize / sizeof(int)];
 
             int srcBpp = src.Info.BytesPerPixel;
             int dstBpp = dst.Info.BytesPerPixel;
@@ -1034,9 +1024,9 @@ namespace Ryujinx.Graphics.Vulkan
 
             shaderParams[0] = BitOperations.Log2((uint)ratio);
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
 
-            gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+            buffer.Holder.SetDataUnchecked<int>(buffer.Offset, shaderParams);
 
             TextureView.InsertImageBarrier(
                 gd.Api,
@@ -1064,7 +1054,7 @@ namespace Ryujinx.Graphics.Vulkan
             var srcFormat = GetFormat(componentSize, srcBpp / componentSize);
             var dstFormat = GetFormat(componentSize, dstBpp / componentSize);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, buffer.Range) });
 
             for (int l = 0; l < levels; l++)
             {
@@ -1093,8 +1083,6 @@ namespace Ryujinx.Graphics.Vulkan
                 }
             }
 
-            gd.BufferManager.Delete(bufferHandle);
-
             _pipeline.Finish(gd, cbs);
 
             TextureView.InsertImageBarrier(
@@ -1128,9 +1116,9 @@ namespace Ryujinx.Graphics.Vulkan
             (shaderParams[0], shaderParams[1]) = GetSampleCountXYLog2(samples);
             (shaderParams[2], shaderParams[3]) = GetSampleCountXYLog2((int)TextureStorage.ConvertToSampleCountFlags(gd.Capabilities.SupportedSampleCounts, (uint)samples));
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
 
-            gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+            buffer.Holder.SetDataUnchecked<int>(buffer.Offset, shaderParams);
 
             TextureView.InsertImageBarrier(
                 gd.Api,
@@ -1147,7 +1135,7 @@ namespace Ryujinx.Graphics.Vulkan
                 1);
 
             _pipeline.SetCommandBuffer(cbs);
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, buffer.Range) });
 
             if (isDepthOrStencil)
             {
@@ -1226,8 +1214,6 @@ namespace Ryujinx.Graphics.Vulkan
                 }
             }
 
-            gd.BufferManager.Delete(bufferHandle);
-
             _pipeline.Finish(gd, cbs);
 
             TextureView.InsertImageBarrier(
@@ -1261,9 +1247,9 @@ namespace Ryujinx.Graphics.Vulkan
             (shaderParams[0], shaderParams[1]) = GetSampleCountXYLog2(samples);
             (shaderParams[2], shaderParams[3]) = GetSampleCountXYLog2((int)TextureStorage.ConvertToSampleCountFlags(gd.Capabilities.SupportedSampleCounts, (uint)samples));
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
 
-            gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+            buffer.Holder.SetDataUnchecked<int>(buffer.Offset, shaderParams);
 
             TextureView.InsertImageBarrier(
                 gd.Api,
@@ -1299,7 +1285,7 @@ namespace Ryujinx.Graphics.Vulkan
             _pipeline.SetViewports(viewports);
             _pipeline.SetPrimitiveTopology(PrimitiveTopology.TriangleStrip);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, buffer.Range) });
 
             if (isDepthOrStencil)
             {
@@ -1364,8 +1350,6 @@ namespace Ryujinx.Graphics.Vulkan
                 }
             }
 
-            gd.BufferManager.Delete(bufferHandle);
-
             _pipeline.Finish(gd, cbs);
 
             TextureView.InsertImageBarrier(
@@ -1616,10 +1600,11 @@ namespace Ryujinx.Graphics.Vulkan
 
             pattern.OffsetIndex.CopyTo(shaderParams[..pattern.OffsetIndex.Length]);
 
-            var patternBufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize, out var patternBuffer);
+            using var patternScoped = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
+            var patternBuffer = patternScoped.Holder;
             var patternBufferAuto = patternBuffer.GetBuffer();
 
-            gd.BufferManager.SetData<int>(patternBufferHandle, 0, shaderParams);
+            patternBuffer.SetDataUnchecked<int>(patternScoped.Offset, shaderParams);
 
             _pipeline.SetCommandBuffer(cbs);
 
@@ -1635,7 +1620,8 @@ namespace Ryujinx.Graphics.Vulkan
                 indirectDataSize);
 
             _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, drawCountBufferAligned) });
-            _pipeline.SetStorageBuffers(1, new[] { srcIndirectBuffer.GetBuffer(), dstIndirectBuffer.GetBuffer(), patternBuffer.GetBuffer() });
+            _pipeline.SetStorageBuffers(1, new[] { srcIndirectBuffer.GetBuffer(), dstIndirectBuffer.GetBuffer() });
+            _pipeline.SetStorageBuffers(stackalloc[] { new BufferAssignment(3, patternScoped.Range) });
 
             _pipeline.SetProgram(_programConvertIndirectData);
             _pipeline.DispatchCompute(1, 1, 1);
@@ -1643,12 +1629,12 @@ namespace Ryujinx.Graphics.Vulkan
             BufferHolder.InsertBufferBarrier(
                 gd,
                 cbs.CommandBuffer,
-                patternBufferAuto.Get(cbs, ParamsIndirectDispatchOffset, ParamsIndirectDispatchSize).Value,
+                patternBufferAuto.Get(cbs, patternScoped.Offset + ParamsIndirectDispatchOffset, ParamsIndirectDispatchSize).Value,
                 AccessFlags.ShaderWriteBit,
                 AccessFlags.IndirectCommandReadBit,
                 PipelineStageFlags.ComputeShaderBit,
                 PipelineStageFlags.DrawIndirectBit,
-                ParamsIndirectDispatchOffset,
+                patternScoped.Offset + ParamsIndirectDispatchOffset,
                 ParamsIndirectDispatchSize);
 
             BufferHolder.InsertBufferBarrier(
@@ -1662,11 +1648,11 @@ namespace Ryujinx.Graphics.Vulkan
                 0,
                 convertedCount * outputIndexSize);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(patternBufferHandle, 0, ParamsBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(patternScoped.Handle, patternScoped.Offset, ParamsBufferSize)) });
             _pipeline.SetStorageBuffers(1, new[] { srcIndexBuffer.GetBuffer(), dstIndexBuffer.GetBuffer() });
 
             _pipeline.SetProgram(_programConvertIndexBuffer);
-            _pipeline.DispatchComputeIndirect(patternBufferAuto, ParamsIndirectDispatchOffset);
+            _pipeline.DispatchComputeIndirect(patternBufferAuto, patternScoped.Offset + ParamsIndirectDispatchOffset);
 
             BufferHolder.InsertBufferBarrier(
                 gd,
@@ -1679,8 +1665,6 @@ namespace Ryujinx.Graphics.Vulkan
                 0,
                 convertedCount * outputIndexSize);
 
-            gd.BufferManager.Delete(patternBufferHandle);
-
             _pipeline.Finish(gd, cbs);
         }
 
@@ -1726,13 +1710,13 @@ namespace Ryujinx.Graphics.Vulkan
             shaderParams[0] = pixelCount;
             shaderParams[1] = dstOffset;
 
-            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+            using var buffer = gd.BufferManager.ReserveOrCreate(gd, cbs, ParamsBufferSize);
 
-            gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+            buffer.Holder.SetDataUnchecked<int>(buffer.Offset, shaderParams);
 
             _pipeline.SetCommandBuffer(cbs);
 
-            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, buffer.Range) });
 
             Span<Auto<DisposableBuffer>> sbRanges = new Auto<DisposableBuffer>[2];
 
@@ -1744,8 +1728,6 @@ namespace Ryujinx.Graphics.Vulkan
             _pipeline.SetProgram(_programConvertD32S8ToD24S8);
             _pipeline.DispatchCompute(1 + inSize / ConvertElementsPerWorkgroup, 1, 1);
 
-            gd.BufferManager.Delete(bufferHandle);
-
             _pipeline.Finish(gd, cbs);
 
             BufferHolder.InsertBufferBarrier(

src/Ryujinx.Graphics.Vulkan/Queries/CounterQueue.cs

@@ -67,9 +67,18 @@ namespace Ryujinx.Graphics.Vulkan.Queries
             lock (_queryPool)
             {
                 count = Math.Min(count, _queryPool.Count);
-                for (int i = 0; i < count; i++)
+
+                if (count > 0)
                 {
-                    _queryPool.ElementAt(i).PoolReset(cmd, ResetSequence);
+                    foreach (BufferedQuery query in _queryPool)
+                    {
+                        query.PoolReset(cmd, ResetSequence);
+
+                        if (--count == 0)
+                        {
+                            break;
+                        }
+                    }
                 }
             }
         }

src/Ryujinx.Graphics.Vulkan/StagingBuffer.cs

@@ -1,5 +1,6 @@
 using Ryujinx.Common;
 using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.GAL;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -29,6 +30,9 @@ namespace Ryujinx.Graphics.Vulkan
 
         private readonly VulkanRenderer _gd;
         private readonly BufferHolder _buffer;
+        private readonly int _resourceAlignment;
+
+        public readonly BufferHandle Handle;
 
         private readonly struct PendingCopy
         {
@@ -48,9 +52,10 @@ namespace Ryujinx.Graphics.Vulkan
         public StagingBuffer(VulkanRenderer gd, BufferManager bufferManager)
         {
             _gd = gd;
-            _buffer = bufferManager.Create(gd, BufferSize);
+            Handle = bufferManager.CreateWithHandle(gd, BufferSize, out _buffer);
             _pendingCopies = new Queue<PendingCopy>();
             _freeSize = BufferSize;
+            _resourceAlignment = (int)gd.Capabilities.MinResourceAlignment;
         }
 
         public void PushData(CommandBufferPool cbp, CommandBufferScoped? cbs, Action endRenderPass, BufferHolder dst, int dstOffset, ReadOnlySpan<byte> data)
@@ -197,7 +202,7 @@ namespace Ryujinx.Graphics.Vulkan
         /// Reserve a range on the staging buffer for the current command buffer and upload data to it.
         /// </summary>
         /// <param name="cbs">Command buffer to reserve the data on</param>
-        /// <param name="data">The data to upload</param>
+        /// <param name="size">The minimum size the reserved data requires</param>
         /// <param name="alignment">The required alignment for the buffer offset</param>
         /// <returns>The reserved range of the staging buffer</returns>
         public unsafe StagingBufferReserved? TryReserveData(CommandBufferScoped cbs, int size, int alignment)
@@ -223,6 +228,18 @@ namespace Ryujinx.Graphics.Vulkan
             return ReserveDataImpl(cbs, size, alignment);
         }
 
+        /// <summary>
+        /// Reserve a range on the staging buffer for the current command buffer and upload data to it.
+        /// Uses the most permissive byte alignment.
+        /// </summary>
+        /// <param name="cbs">Command buffer to reserve the data on</param>
+        /// <param name="size">The minimum size the reserved data requires</param>
+        /// <returns>The reserved range of the staging buffer</returns>
+        public unsafe StagingBufferReserved? TryReserveData(CommandBufferScoped cbs, int size)
+        {
+            return TryReserveData(cbs, size, _resourceAlignment);
+        }
+
         private bool WaitFreeCompleted(CommandBufferPool cbp)
         {
             if (_pendingCopies.TryPeek(out var pc))
@@ -263,7 +280,7 @@ namespace Ryujinx.Graphics.Vulkan
         {
             if (disposing)
             {
-                _buffer.Dispose();
+                _gd.BufferManager.Delete(Handle);
 
                 while (_pendingCopies.TryDequeue(out var pc))
                 {

src/Ryujinx.Graphics.Vulkan/VulkanPhysicalDevice.cs

@@ -58,6 +58,33 @@ namespace Ryujinx.Graphics.Vulkan
 
         public bool IsDeviceExtensionPresent(string extension) => DeviceExtensions.Contains(extension);
 
+        public unsafe bool TryGetPhysicalDeviceDriverPropertiesKHR(Vk api, out PhysicalDeviceDriverPropertiesKHR res)
+        {
+            if (!IsDeviceExtensionPresent("VK_KHR_driver_properties"))
+            {
+                res = default;
+
+                return false;
+            }
+
+            PhysicalDeviceDriverPropertiesKHR physicalDeviceDriverProperties = new()
+            {
+                SType = StructureType.PhysicalDeviceDriverPropertiesKhr
+            };
+
+            PhysicalDeviceProperties2 physicalDeviceProperties2 = new()
+            {
+                SType = StructureType.PhysicalDeviceProperties2,
+                PNext = &physicalDeviceDriverProperties
+            };
+
+            api.GetPhysicalDeviceProperties2(PhysicalDevice, &physicalDeviceProperties2);
+
+            res = physicalDeviceDriverProperties;
+
+            return true;
+        }
+
         public DeviceInfo ToDeviceInfo()
         {
             return new DeviceInfo(

src/Ryujinx.Graphics.Vulkan/VulkanRenderer.cs

@@ -84,6 +84,7 @@ namespace Ryujinx.Graphics.Vulkan
         internal bool IsTBDR { get; private set; }
         internal bool IsSharedMemory { get; private set; }
         public string GpuVendor { get; private set; }
+        public string GpuDriver { get; private set; }
         public string GpuRenderer { get; private set; }
         public string GpuVersion { get; private set; }
 
@@ -636,7 +637,7 @@ namespace Ryujinx.Graphics.Vulkan
 
         public HardwareInfo GetHardwareInfo()
         {
-            return new HardwareInfo(GpuVendor, GpuRenderer);
+            return new HardwareInfo(GpuVendor, GpuRenderer, GpuDriver);
         }
 
         /// <summary>
@@ -693,6 +694,8 @@ namespace Ryujinx.Graphics.Vulkan
         {
             var properties = _physicalDevice.PhysicalDeviceProperties;
 
+            var hasDriverProperties = _physicalDevice.TryGetPhysicalDeviceDriverPropertiesKHR(Api, out var driverProperties);
+
             string vendorName = VendorUtils.GetNameFromId(properties.VendorID);
 
             Vendor = VendorUtils.FromId(properties.VendorID);
@@ -707,6 +710,7 @@ namespace Ryujinx.Graphics.Vulkan
                 Vendor == Vendor.ImgTec;
 
             GpuVendor = vendorName;
+            GpuDriver = hasDriverProperties ? Marshal.PtrToStringAnsi((IntPtr)driverProperties.DriverName) : vendorName; // Fall back to vendor name if driver name isn't available.
             GpuRenderer = Marshal.PtrToStringAnsi((IntPtr)properties.DeviceName);
             GpuVersion = $"Vulkan v{ParseStandardVulkanVersion(properties.ApiVersion)}, Driver v{ParseDriverVersion(ref properties)}";
 

src/Ryujinx.HLE/FileSystem/VirtualFileSystem.cs

@@ -186,7 +186,12 @@ namespace Ryujinx.HLE.FileSystem
 
         public void InitializeFsServer(LibHac.Horizon horizon, out HorizonClient fsServerClient)
         {
-            LocalFileSystem serverBaseFs = new(AppDataManager.BaseDirPath);
+            LocalFileSystem serverBaseFs = new(useUnixTimeStamps: true);
+            Result result = serverBaseFs.Initialize(AppDataManager.BaseDirPath, LocalFileSystem.PathMode.DefaultCaseSensitivity, ensurePathExists: true);
+            if (result.IsFailure())
+            {
+                throw new HorizonResultException(result, "Error creating LocalFileSystem.");
+            }
 
             fsServerClient = horizon.CreatePrivilegedHorizonClient();
             var fsServer = new FileSystemServer(fsServerClient);

src/Ryujinx.HLE/HOS/ModLoader.cs

@@ -7,6 +7,7 @@ using LibHac.Tools.FsSystem;
 using LibHac.Tools.FsSystem.RomFs;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.HOS.Kernel.Process;
 using Ryujinx.HLE.Loaders.Executables;
 using Ryujinx.HLE.Loaders.Mods;
@@ -37,15 +38,19 @@ namespace Ryujinx.HLE.HOS
         private const string AmsNroPatchDir = "nro_patches";
         private const string AmsKipPatchDir = "kip_patches";
 
+        private static readonly ModMetadataJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
+
         public readonly struct Mod<T> where T : FileSystemInfo
         {
             public readonly string Name;
             public readonly T Path;
+            public readonly bool Enabled;
 
-            public Mod(string name, T path)
+            public Mod(string name, T path, bool enabled)
             {
                 Name = name;
                 Path = path;
+                Enabled = enabled;
             }
         }
 
@@ -67,7 +72,7 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        // Title dependent mods
+        // Application dependent mods
         public class ModCache
         {
             public List<Mod<FileInfo>> RomfsContainers { get; }
@@ -88,7 +93,7 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        // Title independent mods
+        // Application independent mods
         private class PatchCache
         {
             public List<Mod<DirectoryInfo>> NsoPatches { get; }
@@ -107,7 +112,7 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        private readonly Dictionary<ulong, ModCache> _appMods; // key is TitleId
+        private readonly Dictionary<ulong, ModCache> _appMods; // key is ApplicationId
         private PatchCache _patches;
 
         private static readonly EnumerationOptions _dirEnumOptions;
@@ -153,26 +158,52 @@ namespace Ryujinx.HLE.HOS
             return modsDir.FullName;
         }
 
-        private static DirectoryInfo FindTitleDir(DirectoryInfo contentsDir, string titleId)
-            => contentsDir.EnumerateDirectories(titleId, _dirEnumOptions).FirstOrDefault();
+        private static DirectoryInfo FindApplicationDir(DirectoryInfo contentsDir, string applicationId)
+            => contentsDir.EnumerateDirectories(applicationId, _dirEnumOptions).FirstOrDefault();
 
-        private static void AddModsFromDirectory(ModCache mods, DirectoryInfo dir, string titleId)
+        private static void AddModsFromDirectory(ModCache mods, DirectoryInfo dir, ModMetadata modMetadata)
         {
             System.Text.StringBuilder types = new();
 
             foreach (var modDir in dir.EnumerateDirectories())
             {
                 types.Clear();
-                Mod<DirectoryInfo> mod = new("", null);
+                Mod<DirectoryInfo> mod = new("", null, true);
 
                 if (StrEquals(RomfsDir, modDir.Name))
                 {
-                    mods.RomfsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir));
+                    bool enabled;
+
+                    try
+                    {
+                        var modData = modMetadata.Mods.Find(x => modDir.FullName.Contains(x.Path));
+                        enabled = modData.Enabled;
+                    }
+                    catch
+                    {
+                        // Mod is not in the list yet. New mods should be enabled by default.
+                        enabled = true;
+                    }
+
+                    mods.RomfsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('R');
                 }
                 else if (StrEquals(ExefsDir, modDir.Name))
                 {
-                    mods.ExefsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir));
+                    bool enabled;
+
+                    try
+                    {
+                        var modData = modMetadata.Mods.Find(x => modDir.FullName.Contains(x.Path));
+                        enabled = modData.Enabled;
+                    }
+                    catch
+                    {
+                        // Mod is not in the list yet. New mods should be enabled by default.
+                        enabled = true;
+                    }
+
+                    mods.ExefsDirs.Add(mod = new Mod<DirectoryInfo>(dir.Name, modDir, enabled));
                     types.Append('E');
                 }
                 else if (StrEquals(CheatDir, modDir.Name))
@@ -181,7 +212,7 @@ namespace Ryujinx.HLE.HOS
                 }
                 else
                 {
-                    AddModsFromDirectory(mods, modDir, titleId);
+                    AddModsFromDirectory(mods, modDir, modMetadata);
                 }
 
                 if (types.Length > 0)
@@ -191,18 +222,18 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        public static string GetTitleDir(string modsBasePath, string titleId)
+        public static string GetApplicationDir(string modsBasePath, string applicationId)
         {
             var contentsDir = new DirectoryInfo(Path.Combine(modsBasePath, AmsContentsDir));
-            var titleModsPath = FindTitleDir(contentsDir, titleId);
+            var applicationModsPath = FindApplicationDir(contentsDir, applicationId);
 
-            if (titleModsPath == null)
+            if (applicationModsPath == null)
             {
-                Logger.Info?.Print(LogClass.ModLoader, $"Creating mods directory for Title {titleId.ToUpper()}");
-                titleModsPath = contentsDir.CreateSubdirectory(titleId);
+                Logger.Info?.Print(LogClass.ModLoader, $"Creating mods directory for Application {applicationId.ToUpper()}");
+                applicationModsPath = contentsDir.CreateSubdirectory(applicationId);
             }
 
-            return titleModsPath.FullName;
+            return applicationModsPath.FullName;
         }
 
         // Static Query Methods
@@ -238,47 +269,68 @@ namespace Ryujinx.HLE.HOS
 
             foreach (var modDir in patchDir.EnumerateDirectories())
             {
-                patches.Add(new Mod<DirectoryInfo>(modDir.Name, modDir));
+                patches.Add(new Mod<DirectoryInfo>(modDir.Name, modDir, true));
                 Logger.Info?.Print(LogClass.ModLoader, $"Found {type} patch '{modDir.Name}'");
             }
         }
 
-        private static void QueryTitleDir(ModCache mods, DirectoryInfo titleDir)
+        private static void QueryApplicationDir(ModCache mods, DirectoryInfo applicationDir, ulong applicationId)
         {
-            if (!titleDir.Exists)
+            if (!applicationDir.Exists)
             {
                 return;
             }
 
-            var fsFile = new FileInfo(Path.Combine(titleDir.FullName, RomfsContainer));
-            if (fsFile.Exists)
+            string modJsonPath = Path.Combine(AppDataManager.GamesDirPath, applicationId.ToString("x16"), "mods.json");
+            ModMetadata modMetadata = new();
+
+            if (File.Exists(modJsonPath))
             {
-                mods.RomfsContainers.Add(new Mod<FileInfo>($"<{titleDir.Name} RomFs>", fsFile));
+                try
+                {
+                    modMetadata = JsonHelper.DeserializeFromFile(modJsonPath, _serializerContext.ModMetadata);
+                }
+                catch
+                {
+                    Logger.Warning?.Print(LogClass.ModLoader, $"Failed to deserialize mod data for {applicationId:X16} at {modJsonPath}");
+                }
             }
 
-            fsFile = new FileInfo(Path.Combine(titleDir.FullName, ExefsContainer));
+            var fsFile = new FileInfo(Path.Combine(applicationDir.FullName, RomfsContainer));
             if (fsFile.Exists)
             {
-                mods.ExefsContainers.Add(new Mod<FileInfo>($"<{titleDir.Name} ExeFs>", fsFile));
+                var modData = modMetadata.Mods.Find(x => fsFile.FullName.Contains(x.Path));
+                var enabled = modData == null || modData.Enabled;
+
+                mods.RomfsContainers.Add(new Mod<FileInfo>($"<{applicationDir.Name} RomFs>", fsFile, enabled));
             }
 
-            AddModsFromDirectory(mods, titleDir, titleDir.Name);
+            fsFile = new FileInfo(Path.Combine(applicationDir.FullName, ExefsContainer));
+            if (fsFile.Exists)
+            {
+                var modData = modMetadata.Mods.Find(x => fsFile.FullName.Contains(x.Path));
+                var enabled = modData == null || modData.Enabled;
+
+                mods.ExefsContainers.Add(new Mod<FileInfo>($"<{applicationDir.Name} ExeFs>", fsFile, enabled));
+            }
+
+            AddModsFromDirectory(mods, applicationDir, modMetadata);
         }
 
-        public static void QueryContentsDir(ModCache mods, DirectoryInfo contentsDir, ulong titleId)
+        public static void QueryContentsDir(ModCache mods, DirectoryInfo contentsDir, ulong applicationId)
         {
             if (!contentsDir.Exists)
             {
                 return;
             }
 
-            Logger.Info?.Print(LogClass.ModLoader, $"Searching mods for {((titleId & 0x1000) != 0 ? "DLC" : "Title")} {titleId:X16}");
+            Logger.Info?.Print(LogClass.ModLoader, $"Searching mods for {((applicationId & 0x1000) != 0 ? "DLC" : "Application")} {applicationId:X16} in \"{contentsDir.FullName}\"");
 
-            var titleDir = FindTitleDir(contentsDir, $"{titleId:x16}");
+            var applicationDir = FindApplicationDir(contentsDir, $"{applicationId:x16}");
 
-            if (titleDir != null)
+            if (applicationDir != null)
             {
-                QueryTitleDir(mods, titleDir);
+                QueryApplicationDir(mods, applicationDir, applicationId);
             }
         }
 
@@ -387,9 +439,9 @@ namespace Ryujinx.HLE.HOS
             {
                 if (IsContentsDir(searchDir.Name))
                 {
-                    foreach ((ulong titleId, ModCache cache) in modCaches)
+                    foreach ((ulong applicationId, ModCache cache) in modCaches)
                     {
-                        QueryContentsDir(cache, searchDir, titleId);
+                        QueryContentsDir(cache, searchDir, applicationId);
                     }
 
                     return true;
@@ -410,7 +462,7 @@ namespace Ryujinx.HLE.HOS
                 if (!searchDir.Exists)
                 {
                     Logger.Warning?.Print(LogClass.ModLoader, $"Mod Search Dir '{searchDir.FullName}' doesn't exist");
-                    continue;
+                    return;
                 }
 
                 if (!TryQuery(searchDir, patches, modCaches))
@@ -425,21 +477,21 @@ namespace Ryujinx.HLE.HOS
             patches.Initialized = true;
         }
 
-        public void CollectMods(IEnumerable<ulong> titles, params string[] searchDirPaths)
+        public void CollectMods(IEnumerable<ulong> applications, params string[] searchDirPaths)
         {
             Clear();
 
-            foreach (ulong titleId in titles)
+            foreach (ulong applicationId in applications)
             {
-                _appMods[titleId] = new ModCache();
+                _appMods[applicationId] = new ModCache();
             }
 
             CollectMods(_appMods, _patches, searchDirPaths);
         }
 
-        internal IStorage ApplyRomFsMods(ulong titleId, IStorage baseStorage)
+        internal IStorage ApplyRomFsMods(ulong applicationId, IStorage baseStorage)
         {
-            if (!_appMods.TryGetValue(titleId, out ModCache mods) || mods.RomfsDirs.Count + mods.RomfsContainers.Count == 0)
+            if (!_appMods.TryGetValue(applicationId, out ModCache mods) || mods.RomfsDirs.Count + mods.RomfsContainers.Count == 0)
             {
                 return baseStorage;
             }
@@ -448,11 +500,16 @@ namespace Ryujinx.HLE.HOS
             var builder = new RomFsBuilder();
             int count = 0;
 
-            Logger.Info?.Print(LogClass.ModLoader, $"Applying RomFS mods for Title {titleId:X16}");
+            Logger.Info?.Print(LogClass.ModLoader, $"Applying RomFS mods for Application {applicationId:X16}");
 
             // Prioritize loose files first
             foreach (var mod in mods.RomfsDirs)
             {
+                if (!mod.Enabled)
+                {
+                    continue;
+                }
+
                 using (IFileSystem fs = new LocalFileSystem(mod.Path.FullName))
                 {
                     AddFiles(fs, mod.Name, fileSet, builder);
@@ -463,7 +520,12 @@ namespace Ryujinx.HLE.HOS
             // Then files inside images
             foreach (var mod in mods.RomfsContainers)
             {
-                Logger.Info?.Print(LogClass.ModLoader, $"Found 'romfs.bin' for Title {titleId:X16}");
+                if (!mod.Enabled)
+                {
+                    continue;
+                }
+
+                Logger.Info?.Print(LogClass.ModLoader, $"Found 'romfs.bin' for Application {applicationId:X16}");
                 using (IFileSystem fs = new RomFsFileSystem(mod.Path.OpenRead().AsStorage()))
                 {
                     AddFiles(fs, mod.Name, fileSet, builder);
@@ -519,9 +581,9 @@ namespace Ryujinx.HLE.HOS
             }
         }
 
-        internal bool ReplaceExefsPartition(ulong titleId, ref IFileSystem exefs)
+        internal bool ReplaceExefsPartition(ulong applicationId, ref IFileSystem exefs)
         {
-            if (!_appMods.TryGetValue(titleId, out ModCache mods) || mods.ExefsContainers.Count == 0)
+            if (!_appMods.TryGetValue(applicationId, out ModCache mods) || mods.ExefsContainers.Count == 0)
             {
                 return false;
             }
@@ -549,7 +611,7 @@ namespace Ryujinx.HLE.HOS
             public bool Modified => (Stubs.Data | Replaces.Data) != 0;
         }
 
-        internal ModLoadResult ApplyExefsMods(ulong titleId, NsoExecutable[] nsos)
+        internal ModLoadResult ApplyExefsMods(ulong applicationId, NsoExecutable[] nsos)
         {
             ModLoadResult modLoadResult = new()
             {
@@ -557,7 +619,7 @@ namespace Ryujinx.HLE.HOS
                 Replaces = new BitVector32(),
             };
 
-            if (!_appMods.TryGetValue(titleId, out ModCache mods) || mods.ExefsDirs.Count == 0)
+            if (!_appMods.TryGetValue(applicationId, out ModCache mods) || mods.ExefsDirs.Count == 0)
             {
                 return modLoadResult;
             }
@@ -571,6 +633,11 @@ namespace Ryujinx.HLE.HOS
 
             foreach (var mod in exeMods)
             {
+                if (!mod.Enabled)
+                {
+                    continue;
+                }
+
                 for (int i = 0; i < ProcessConst.ExeFsPrefixes.Length; ++i)
                 {
                     var nsoName = ProcessConst.ExeFsPrefixes[i];
@@ -637,11 +704,11 @@ namespace Ryujinx.HLE.HOS
             ApplyProgramPatches(nroPatches, 0, nro);
         }
 
-        internal bool ApplyNsoPatches(ulong titleId, params IExecutable[] programs)
+        internal bool ApplyNsoPatches(ulong applicationId, params IExecutable[] programs)
         {
             IEnumerable<Mod<DirectoryInfo>> nsoMods = _patches.NsoPatches;
 
-            if (_appMods.TryGetValue(titleId, out ModCache mods))
+            if (_appMods.TryGetValue(applicationId, out ModCache mods))
             {
                 nsoMods = nsoMods.Concat(mods.ExefsDirs);
             }
@@ -651,7 +718,7 @@ namespace Ryujinx.HLE.HOS
             return ApplyProgramPatches(nsoMods, 0x100, programs);
         }
 
-        internal void LoadCheats(ulong titleId, ProcessTamperInfo tamperInfo, TamperMachine tamperMachine)
+        internal void LoadCheats(ulong applicationId, ProcessTamperInfo tamperInfo, TamperMachine tamperMachine)
         {
             if (tamperInfo?.BuildIds == null || tamperInfo.CodeAddresses == null)
             {
@@ -660,9 +727,9 @@ namespace Ryujinx.HLE.HOS
                 return;
             }
 
-            Logger.Info?.Print(LogClass.ModLoader, $"Build ids found for title {titleId:X16}:\n    {String.Join("\n    ", tamperInfo.BuildIds)}");
+            Logger.Info?.Print(LogClass.ModLoader, $"Build ids found for application {applicationId:X16}:\n    {String.Join("\n    ", tamperInfo.BuildIds)}");
 
-            if (!_appMods.TryGetValue(titleId, out ModCache mods) || mods.Cheats.Count == 0)
+            if (!_appMods.TryGetValue(applicationId, out ModCache mods) || mods.Cheats.Count == 0)
             {
                 return;
             }
@@ -687,12 +754,12 @@ namespace Ryujinx.HLE.HOS
                 tamperMachine.InstallAtmosphereCheat(cheat.Name, cheatId, cheat.Instructions, tamperInfo, exeAddress);
             }
 
-            EnableCheats(titleId, tamperMachine);
+            EnableCheats(applicationId, tamperMachine);
         }
 
-        internal static void EnableCheats(ulong titleId, TamperMachine tamperMachine)
+        internal static void EnableCheats(ulong applicationId, TamperMachine tamperMachine)
         {
-            var contentDirectory = FindTitleDir(new DirectoryInfo(Path.Combine(GetModsBasePath(), AmsContentsDir)), $"{titleId:x16}");
+            var contentDirectory = FindApplicationDir(new DirectoryInfo(Path.Combine(GetModsBasePath(), AmsContentsDir)), $"{applicationId:x16}");
             string enabledCheatsPath = Path.Combine(contentDirectory.FullName, CheatDir, "enabled.txt");
 
             if (File.Exists(enabledCheatsPath))
@@ -724,6 +791,11 @@ namespace Ryujinx.HLE.HOS
             // Collect patches
             foreach (var mod in mods)
             {
+                if (!mod.Enabled)
+                {
+                    continue;
+                }
+
                 var patchDir = mod.Path;
                 foreach (var patchFile in patchDir.EnumerateFiles())
                 {

src/Ryujinx.HLE/HOS/Services/Arp/IReader.cs

@@ -1,8 +0,0 @@
-namespace Ryujinx.HLE.HOS.Services.Arp
-{
-    [Service("arp:r")]
-    class IReader : IpcService
-    {
-        public IReader(ServiceCtx context) { }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Arp/IWriter.cs

@@ -1,8 +0,0 @@
-namespace Ryujinx.HLE.HOS.Services.Arp
-{
-    [Service("arp:w")]
-    class IWriter : IpcService
-    {
-        public IWriter(ServiceCtx context) { }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Fs/FileSystemProxy/IFileSystem.cs

@@ -2,6 +2,7 @@ using LibHac;
 using LibHac.Common;
 using LibHac.Fs;
 using LibHac.Fs.Fsa;
+using Ryujinx.Common.Logging;
 using Path = LibHac.FsSrv.Sf.Path;
 
 namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
@@ -149,7 +150,13 @@ namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
         // Commit()
         public ResultCode Commit(ServiceCtx context)
         {
-            return (ResultCode)_fileSystem.Get.Commit().Value;
+            ResultCode resultCode = (ResultCode)_fileSystem.Get.Commit().Value;
+            if (resultCode == ResultCode.PathAlreadyInUse)
+            {
+                Logger.Warning?.Print(LogClass.ServiceFs, "The file system is already in use by another process.");
+            }
+
+            return resultCode;
         }
 
         [CommandCmif(11)]

src/Ryujinx.HLE/HOS/Services/Nv/Host1xContext.cs

@@ -1,4 +1,4 @@
-using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Host1x;
 using Ryujinx.Graphics.Nvdec;
 using Ryujinx.Graphics.Vic;
@@ -9,7 +9,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv
 {
     class Host1xContext : IDisposable
     {
-        public MemoryManager Smmu { get; }
+        public DeviceMemoryManager Smmu { get; }
         public NvMemoryAllocator MemoryAllocator { get; }
         public Host1xDevice Host1x { get; }
 
@@ -17,7 +17,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv
         {
             MemoryAllocator = new NvMemoryAllocator();
             Host1x = new Host1xDevice(gpu.Synchronization);
-            Smmu = gpu.CreateMemoryManager(pid);
+            Smmu = gpu.CreateDeviceMemoryManager(pid);
             var nvdec = new NvdecDevice(Smmu);
             var vic = new VicDevice(Smmu);
             Host1x.RegisterDevice(ClassId.Nvdec, nvdec);

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostAsGpu/NvHostAsGpuDeviceFile.cs

@@ -266,7 +266,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu
 
             if (size == 0)
             {
-                size = (uint)map.Size;
+                size = map.Size;
             }
 
             NvInternalResult result = NvInternalResult.Success;

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostChannel/NvHostChannelDeviceFile.cs

@@ -250,12 +250,12 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
                 {
                     if (map.DmaMapAddress == 0)
                     {
-                        ulong va = _host1xContext.MemoryAllocator.GetFreeAddress((ulong)map.Size, out ulong freeAddressStartPosition, 1, MemoryManager.PageSize);
+                        ulong va = _host1xContext.MemoryAllocator.GetFreeAddress(map.Size, out ulong freeAddressStartPosition, 1, MemoryManager.PageSize);
 
-                        if (va != NvMemoryAllocator.PteUnmapped && va <= uint.MaxValue && (va + (uint)map.Size) <= uint.MaxValue)
+                        if (va != NvMemoryAllocator.PteUnmapped && va <= uint.MaxValue && (va + map.Size) <= uint.MaxValue)
                         {
-                            _host1xContext.MemoryAllocator.AllocateRange(va, (uint)map.Size, freeAddressStartPosition);
-                            _host1xContext.Smmu.Map(map.Address, va, (uint)map.Size, PteKind.Pitch); // FIXME: This should not use the GMMU.
+                            _host1xContext.MemoryAllocator.AllocateRange(va, map.Size, freeAddressStartPosition);
+                            _host1xContext.Smmu.Map(map.Address, va, map.Size);
                             map.DmaMapAddress = va;
                         }
                         else

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvMap/NvMapDeviceFile.cs

@@ -69,7 +69,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
                 return NvInternalResult.InvalidInput;
             }
 
-            int size = BitUtils.AlignUp(arguments.Size, (int)MemoryManager.PageSize);
+            uint size = BitUtils.AlignUp(arguments.Size, (uint)MemoryManager.PageSize);
 
             arguments.Handle = CreateHandleFromMap(new NvMapHandle(size));
 
@@ -128,7 +128,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
                 map.Align = arguments.Align;
                 map.Kind = (byte)arguments.Kind;
 
-                int size = BitUtils.AlignUp(map.Size, (int)MemoryManager.PageSize);
+                uint size = BitUtils.AlignUp(map.Size, (uint)MemoryManager.PageSize);
 
                 ulong address = arguments.Address;
 
@@ -191,7 +191,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
             switch (arguments.Param)
             {
                 case NvMapHandleParam.Size:
-                    arguments.Result = map.Size;
+                    arguments.Result = (int)map.Size;
                     break;
                 case NvMapHandleParam.Align:
                     arguments.Result = map.Align;

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvMap/Types/NvMapCreate.cs

@@ -5,7 +5,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
     [StructLayout(LayoutKind.Sequential)]
     struct NvMapCreate
     {
-        public int Size;
+        public uint Size;
         public int Handle;
     }
 }

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvMap/Types/NvMapFree.cs

@@ -8,7 +8,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
         public int Handle;
         public int Padding;
         public ulong Address;
-        public int Size;
+        public uint Size;
         public int Flags;
     }
 }

src/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvMap/Types/NvMapHandle.cs

@@ -8,7 +8,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
         public int Handle;
         public int Id;
 #pragma warning restore CS0649
-        public int Size;
+        public uint Size;
         public int Align;
         public int Kind;
         public ulong Address;
@@ -22,7 +22,7 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap
             _dupes = 1;
         }
 
-        public NvMapHandle(int size) : this()
+        public NvMapHandle(uint size) : this()
         {
             Size = size;
         }

src/Ryujinx.HLE/HOS/Services/Pctl/ParentalControlServiceFactory/IParentalControlService.cs

@@ -159,9 +159,7 @@ namespace Ryujinx.HLE.HOS.Services.Pctl.ParentalControlServiceFactory
             }
             else
             {
-#pragma warning disable CS0162 // Unreachable code
                 return ResultCode.StereoVisionRestrictionConfigurableDisabled;
-#pragma warning restore CS0162
             }
         }
 

src/Ryujinx.HLE/HOS/Services/Ssl/SslService/SslManagedSocketConnection.cs

@@ -3,6 +3,7 @@ using Ryujinx.HLE.HOS.Services.Sockets.Bsd.Impl;
 using Ryujinx.HLE.HOS.Services.Ssl.Types;
 using System;
 using System.IO;
+using System.Net;
 using System.Net.Security;
 using System.Net.Sockets;
 using System.Security.Authentication;
@@ -83,10 +84,40 @@ namespace Ryujinx.HLE.HOS.Services.Ssl.SslService
         }
 #pragma warning restore SYSLIB0039
 
+        /// <summary>
+        /// Retrieve the hostname of the current remote in case the provided hostname is null or empty.
+        /// </summary>
+        /// <param name="hostName">The current hostname</param>
+        /// <returns>Either the resolved or provided hostname</returns>
+        /// <remarks>
+        /// This is done to avoid getting an <see cref="System.Security.Authentication.AuthenticationException"/>
+        /// as the remote certificate will be rejected with <c>RemoteCertificateNameMismatch</c> due to an empty hostname.
+        /// This is not what the switch does!
+        /// It might just skip remote hostname verification if the hostname wasn't set with <see cref="ISslConnection.SetHostName"/> before.
+        /// TODO: Remove this as soon as we know how the switch deals with empty hostnames
+        /// </remarks>
+        private string RetrieveHostName(string hostName)
+        {
+            if (!string.IsNullOrEmpty(hostName))
+            {
+                return hostName;
+            }
+
+            try
+            {
+                return Dns.GetHostEntry(Socket.RemoteEndPoint.Address).HostName;
+            }
+            catch (SocketException)
+            {
+                return hostName;
+            }
+        }
+
         public ResultCode Handshake(string hostName)
         {
             StartSslOperation();
             _stream = new SslStream(new NetworkStream(((ManagedSocket)Socket).Socket, false), false, null, null);
+            hostName = RetrieveHostName(hostName);
             _stream.AuthenticateAsClient(hostName, null, TranslateSslVersion(_sslVersion), false);
             EndSslOperation();
 

src/Ryujinx.HLE/Loaders/Processes/Extensions/FileSystemExtensions.cs

@@ -34,7 +34,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
             return metaLoader;
         }
 
-        public static ProcessResult Load(this IFileSystem exeFs, Switch device, BlitStruct<ApplicationControlProperty> nacpData, MetaLoader metaLoader, bool isHomebrew = false)
+        public static ProcessResult Load(this IFileSystem exeFs, Switch device, BlitStruct<ApplicationControlProperty> nacpData, MetaLoader metaLoader, byte programIndex, bool isHomebrew = false)
         {
             ulong programId = metaLoader.GetProgramId();
 
@@ -119,6 +119,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
                 true,
                 programName,
                 metaLoader.GetProgramId(),
+                programIndex,
                 null,
                 nsoExecutables);
 

src/Ryujinx.HLE/Loaders/Processes/Extensions/LocalFileSystemExtensions.cs

@@ -16,17 +16,14 @@ namespace Ryujinx.HLE.Loaders.Processes
             var nacpData = new BlitStruct<ApplicationControlProperty>(1);
             ulong programId = metaLoader.GetProgramId();
 
-            device.Configuration.VirtualFileSystem.ModLoader.CollectMods(
-                new[] { programId },
-                ModLoader.GetModsBasePath(),
-                ModLoader.GetSdModsBasePath());
+            device.Configuration.VirtualFileSystem.ModLoader.CollectMods(new[] { programId });
 
             if (programId != 0)
             {
                 ProcessLoaderHelper.EnsureSaveData(device, new ApplicationId(programId), nacpData);
             }
 
-            ProcessResult processResult = exeFs.Load(device, nacpData, metaLoader);
+            ProcessResult processResult = exeFs.Load(device, nacpData, metaLoader, 0);
 
             // Load RomFS.
             if (!string.IsNullOrEmpty(romFsPath))

src/Ryujinx.HLE/Loaders/Processes/Extensions/NcaExtensions.cs

@@ -61,7 +61,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
 
             */
 
-            ProcessResult processResult = exeFs.Load(device, nacpData, metaLoader);
+            ProcessResult processResult = exeFs.Load(device, nacpData, metaLoader, (byte)nca.GetProgramIndex());
 
             // Load RomFS.
             if (romFs == null)

src/Ryujinx.HLE/Loaders/Processes/ProcessLoader.cs

@@ -77,7 +77,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             if (processResult.ProcessId == 0)
             {
                 // This is not a normal NSP, it's actually a ExeFS as a NSP
-                processResult = partitionFileSystem.Load(_device, new BlitStruct<ApplicationControlProperty>(1), partitionFileSystem.GetNpdm(), true);
+                processResult = partitionFileSystem.Load(_device, new BlitStruct<ApplicationControlProperty>(1), partitionFileSystem.GetNpdm(), 0, true);
             }
 
             if (processResult.ProcessId != 0 && _processesByPid.TryAdd(processResult.ProcessId, processResult))
@@ -198,7 +198,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             }
             else
             {
-                programName = System.IO.Path.GetFileNameWithoutExtension(path);
+                programName = Path.GetFileNameWithoutExtension(path);
 
                 executable = new NsoExecutable(new LocalStorage(path, FileAccess.Read), programName);
             }
@@ -215,6 +215,7 @@ namespace Ryujinx.HLE.Loaders.Processes
                                                                        allowCodeMemoryForJit: true,
                                                                        programName,
                                                                        programId,
+                                                                       0,
                                                                        null,
                                                                        executable);
 

src/Ryujinx.HLE/Loaders/Processes/ProcessLoaderHelper.cs

@@ -19,6 +19,7 @@ using Ryujinx.HLE.HOS.Kernel.Process;
 using Ryujinx.HLE.Loaders.Executables;
 using Ryujinx.HLE.Loaders.Processes.Extensions;
 using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
 using System;
 using System.Linq;
 using System.Runtime.InteropServices;
@@ -229,6 +230,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             bool allowCodeMemoryForJit,
             string name,
             ulong programId,
+            byte programIndex,
             byte[] arguments = null,
             params IExecutable[] executables)
         {
@@ -421,7 +423,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             // Once everything is loaded, we can load cheats.
             device.Configuration.VirtualFileSystem.ModLoader.LoadCheats(programId, tamperInfo, device.TamperMachine);
 
-            return new ProcessResult(
+            ProcessResult processResult = new(
                 metaLoader,
                 applicationControlProperties,
                 diskCacheEnabled,
@@ -431,6 +433,25 @@ namespace Ryujinx.HLE.Loaders.Processes
                 meta.MainThreadPriority,
                 meta.MainThreadStackSize,
                 device.System.State.DesiredTitleLanguage);
+
+            // Register everything in arp service.
+            device.System.ServiceTable.ArpWriter.AcquireRegistrar(out IRegistrar registrar);
+            registrar.SetApplicationControlProperty(MemoryMarshal.Cast<byte, Horizon.Sdk.Ns.ApplicationControlProperty>(applicationControlProperties.ByteSpan)[0]);
+            // TODO: Handle Version and StorageId when it will be needed.
+            registrar.SetApplicationLaunchProperty(new ApplicationLaunchProperty()
+            {
+                ApplicationId = new Horizon.Sdk.Ncm.ApplicationId(programId),
+                Version = 0x00,
+                Storage = Horizon.Sdk.Ncm.StorageId.BuiltInUser,
+                PatchStorage = Horizon.Sdk.Ncm.StorageId.None,
+                ApplicationKind = ApplicationKind.Application,
+            });
+
+            device.System.ServiceTable.ArpReader.GetApplicationInstanceId(out ulong applicationInstanceId, process.Pid);
+            device.System.ServiceTable.ArpWriter.AcquireApplicationProcessPropertyUpdater(out IUpdater updater, applicationInstanceId);
+            updater.SetApplicationProcessProperty(process.Pid, new ApplicationProcessProperty() { ProgramIndex = programIndex });
+
+            return processResult;
         }
 
         public static Result LoadIntoMemory(KProcess process, IExecutable image, ulong baseAddress)

src/Ryujinx.Headless.SDL2/WindowBase.cs

@@ -80,7 +80,7 @@ namespace Ryujinx.Headless.SDL2
         private bool _isStopped;
         private uint _windowId;
 
-        private string _gpuVendorName;
+        private string _gpuDriverName;
 
         private readonly AspectRatio _aspectRatio;
         private readonly bool _enableMouse;
@@ -241,9 +241,9 @@ namespace Ryujinx.Headless.SDL2
 
         public abstract SDL_WindowFlags GetWindowFlags();
 
-        private string GetGpuVendorName()
+        private string GetGpuDriverName()
         {
-            return Renderer.GetHardwareInfo().GpuVendor;
+            return Renderer.GetHardwareInfo().GpuDriver;
         }
 
         private void SetAntiAliasing()
@@ -269,7 +269,7 @@ namespace Ryujinx.Headless.SDL2
 
             SetScalingFilter();
 
-            _gpuVendorName = GetGpuVendorName();
+            _gpuDriverName = GetGpuDriverName();
 
             Device.Gpu.Renderer.RunLoop(() =>
             {
@@ -314,7 +314,7 @@ namespace Ryujinx.Headless.SDL2
                             Device.Configuration.AspectRatio.ToText(),
                             $"Game: {Device.Statistics.GetGameFrameRate():00.00} FPS ({Device.Statistics.GetGameFrameTime():00.00} ms)",
                             $"FIFO: {Device.Statistics.GetFifoPercent():0.00} %",
-                            $"GPU: {_gpuVendorName}"));
+                            $"GPU: {_gpuDriverName}"));
 
                         _ticks = Math.Min(_ticks - _ticksPerFrame, _ticksPerFrame);
                     }

src/Ryujinx.Horizon/Arp/ArpIpcServer.cs

@@ -0,0 +1,61 @@
+using Ryujinx.Horizon.Arp.Ipc;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using Ryujinx.Horizon.Sdk.Sm;
+
+namespace Ryujinx.Horizon.Arp
+{
+    class ArpIpcServer
+    {
+        private const int ArpRMaxSessionsCount = 16;
+        private const int ArpWMaxSessionsCount = 8;
+        private const int MaxSessionsCount = ArpRMaxSessionsCount + ArpWMaxSessionsCount;
+
+        private const int PointerBufferSize = 0x1000;
+        private const int MaxDomains = 24;
+        private const int MaxDomainObjects = 32;
+        private const int MaxPortsCount = 2;
+
+        private static readonly ManagerOptions _managerOptions = new(PointerBufferSize, MaxDomains, MaxDomainObjects, false);
+
+        private SmApi _sm;
+        private ServerManager _serverManager;
+        private ApplicationInstanceManager _applicationInstanceManager;
+
+        public IReader Reader { get; private set; }
+        public IWriter Writer { get; private set; }
+
+        public void Initialize()
+        {
+            HeapAllocator allocator = new();
+
+            _sm = new SmApi();
+            _sm.Initialize().AbortOnFailure();
+
+            _serverManager = new ServerManager(allocator, _sm, MaxPortsCount, _managerOptions, MaxSessionsCount);
+
+            _applicationInstanceManager = new ApplicationInstanceManager();
+
+            Reader reader = new(_applicationInstanceManager);
+            Reader = reader;
+
+            Writer writer = new(_applicationInstanceManager);
+            Writer = writer;
+
+            _serverManager.RegisterObjectForServer(reader, ServiceName.Encode("arp:r"), ArpRMaxSessionsCount);
+            _serverManager.RegisterObjectForServer(writer, ServiceName.Encode("arp:w"), ArpWMaxSessionsCount);
+        }
+
+        public void ServiceRequests()
+        {
+            _serverManager.ServiceRequests();
+        }
+
+        public void Shutdown()
+        {
+            _applicationInstanceManager.Dispose();
+            _serverManager.Dispose();
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/ArpMain.cs

@@ -0,0 +1,20 @@
+namespace Ryujinx.Horizon.Arp
+{
+    class ArpMain : IService
+    {
+        public static void Main(ServiceTable serviceTable)
+        {
+            ArpIpcServer arpIpcServer = new();
+
+            arpIpcServer.Initialize();
+
+            serviceTable.ArpReader = arpIpcServer.Reader;
+            serviceTable.ArpWriter = arpIpcServer.Writer;
+
+            serviceTable.SignalServiceReady();
+
+            arpIpcServer.ServiceRequests();
+            arpIpcServer.Shutdown();
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/Ipc/Reader.cs

@@ -0,0 +1,135 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Ns;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class Reader : IReader, IServiceObject
+    {
+        private readonly ApplicationInstanceManager _applicationInstanceManager;
+
+        public Reader(ApplicationInstanceManager applicationInstanceManager)
+        {
+            _applicationInstanceManager = applicationInstanceManager;
+        }
+
+        [CmifCommand(0)]
+        public Result GetApplicationLaunchProperty(out ApplicationLaunchProperty applicationLaunchProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].LaunchProperty.HasValue)
+            {
+                applicationLaunchProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationLaunchProperty = _applicationInstanceManager.Entries[applicationInstanceId].LaunchProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result GetApplicationControlProperty([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias, 0x4000)] out ApplicationControlProperty applicationControlProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].ControlProperty.HasValue)
+            {
+                applicationControlProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationControlProperty = _applicationInstanceManager.Entries[applicationInstanceId].ControlProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result GetApplicationProcessProperty(out ApplicationProcessProperty applicationProcessProperty, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null || !_applicationInstanceManager.Entries[applicationInstanceId].ProcessProperty.HasValue)
+            {
+                applicationProcessProperty = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationProcessProperty = _applicationInstanceManager.Entries[applicationInstanceId].ProcessProperty.Value;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(3)]
+        public Result GetApplicationInstanceId(out ulong applicationInstanceId, ulong pid)
+        {
+            applicationInstanceId = 0;
+
+            if (pid == 0)
+            {
+                return ArpResult.InvalidPid;
+            }
+
+            for (int i = 0; i < _applicationInstanceManager.Entries.Length; i++)
+            {
+                if (_applicationInstanceManager.Entries[i] != null && _applicationInstanceManager.Entries[i].Pid == pid)
+                {
+                    applicationInstanceId = (ulong)i;
+
+                    return Result.Success;
+                }
+            }
+
+            return ArpResult.InvalidPid;
+        }
+
+        [CmifCommand(4)]
+        public Result GetApplicationInstanceUnregistrationNotifier(out IUnregistrationNotifier unregistrationNotifier)
+        {
+            unregistrationNotifier = new UnregistrationNotifier(_applicationInstanceManager);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(5)]
+        public Result ListApplicationInstanceId(out int count, [Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<ulong> applicationInstanceIdList)
+        {
+            count = 0;
+
+            if (_applicationInstanceManager.Entries[0] != null)
+            {
+                applicationInstanceIdList[count++] = 0;
+            }
+
+            if (_applicationInstanceManager.Entries[1] != null)
+            {
+                applicationInstanceIdList[count++] = 1;
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(6)]
+        public Result GetMicroApplicationInstanceId(out ulong microApplicationInstanceId, [ClientProcessId] ulong pid)
+        {
+            return GetApplicationInstanceId(out microApplicationInstanceId, pid);
+        }
+
+        [CmifCommand(7)]
+        public Result GetApplicationCertificate([Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias | HipcBufferFlags.FixedSize, 0x528)] out ApplicationCertificate applicationCertificate, ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] == null)
+            {
+                applicationCertificate = default;
+
+                return ArpResult.InvalidInstanceId;
+            }
+
+            applicationCertificate = _applicationInstanceManager.Entries[applicationInstanceId].Certificate.Value;
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/Ipc/Registrar.cs

@@ -0,0 +1,52 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Ns;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class Registrar : IRegistrar, IServiceObject
+    {
+        private readonly ApplicationInstance _applicationInstance;
+
+        public Registrar(ApplicationInstance applicationInstance)
+        {
+            _applicationInstance = applicationInstance;
+        }
+
+        [CmifCommand(0)]
+        public Result Issue(out ulong applicationInstanceId)
+        {
+            throw new NotImplementedException();
+        }
+
+        [CmifCommand(1)]
+        public Result SetApplicationLaunchProperty(ApplicationLaunchProperty applicationLaunchProperty)
+        {
+            if (_applicationInstance.LaunchProperty != null)
+            {
+                return ArpResult.DataAlreadyBound;
+            }
+
+            _applicationInstance.LaunchProperty = applicationLaunchProperty;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result SetApplicationControlProperty([Buffer(HipcBufferFlags.In | HipcBufferFlags.MapAlias | HipcBufferFlags.FixedSize, 0x4000)] in ApplicationControlProperty applicationControlProperty)
+        {
+            if (_applicationInstance.ControlProperty != null)
+            {
+                return ArpResult.DataAlreadyBound;
+            }
+
+            _applicationInstance.ControlProperty = applicationControlProperty;
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/Ipc/UnregistrationNotifier.cs

@@ -0,0 +1,25 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class UnregistrationNotifier : IUnregistrationNotifier, IServiceObject
+    {
+        private readonly ApplicationInstanceManager _applicationInstanceManager;
+
+        public UnregistrationNotifier(ApplicationInstanceManager applicationInstanceManager)
+        {
+            _applicationInstanceManager = applicationInstanceManager;
+        }
+
+        [CmifCommand(0)]
+        public Result GetReadableHandle([CopyHandle] out int readableHandle)
+        {
+            readableHandle = _applicationInstanceManager.EventHandle;
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/Ipc/Updater.cs

@@ -0,0 +1,74 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class Updater : IUpdater, IServiceObject
+    {
+        private readonly ApplicationInstanceManager _applicationInstanceManager;
+        private readonly ulong _applicationInstanceId;
+        private readonly bool _forCertificate;
+
+        public Updater(ApplicationInstanceManager applicationInstanceManager, ulong applicationInstanceId, bool forCertificate)
+        {
+            _applicationInstanceManager = applicationInstanceManager;
+            _applicationInstanceId = applicationInstanceId;
+            _forCertificate = forCertificate;
+        }
+
+        [CmifCommand(0)]
+        public Result Issue()
+        {
+            throw new NotImplementedException();
+        }
+
+        [CmifCommand(1)]
+        public Result SetApplicationProcessProperty(ulong pid, ApplicationProcessProperty applicationProcessProperty)
+        {
+            if (_forCertificate)
+            {
+                return ArpResult.DataAlreadyBound;
+            }
+
+            if (pid == 0)
+            {
+                return ArpResult.InvalidPid;
+            }
+
+            _applicationInstanceManager.Entries[_applicationInstanceId].Pid = pid;
+            _applicationInstanceManager.Entries[_applicationInstanceId].ProcessProperty = applicationProcessProperty;
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result DeleteApplicationProcessProperty()
+        {
+            if (_forCertificate)
+            {
+                return ArpResult.DataAlreadyBound;
+            }
+
+            _applicationInstanceManager.Entries[_applicationInstanceId].ProcessProperty = new ApplicationProcessProperty();
+
+            return Result.Success;
+        }
+
+        [CmifCommand(3)]
+        public Result SetApplicationCertificate([Buffer(HipcBufferFlags.In | HipcBufferFlags.AutoSelect)] ApplicationCertificate applicationCertificate)
+        {
+            if (!_forCertificate)
+            {
+                return ArpResult.DataAlreadyBound;
+            }
+
+            _applicationInstanceManager.Entries[_applicationInstanceId].Certificate = applicationCertificate;
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Arp/Ipc/Writer.cs

@@ -0,0 +1,75 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Arp;
+using Ryujinx.Horizon.Sdk.Arp.Detail;
+using Ryujinx.Horizon.Sdk.OsTypes;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Arp.Ipc
+{
+    partial class Writer : IWriter, IServiceObject
+    {
+        private readonly ApplicationInstanceManager _applicationInstanceManager;
+
+        public Writer(ApplicationInstanceManager applicationInstanceManager)
+        {
+            _applicationInstanceManager = applicationInstanceManager;
+        }
+
+        [CmifCommand(0)]
+        public Result AcquireRegistrar(out IRegistrar registrar)
+        {
+            if (_applicationInstanceManager.Entries[0] != null)
+            {
+                if (_applicationInstanceManager.Entries[1] != null)
+                {
+                    registrar = null;
+
+                    return ArpResult.NoFreeInstance;
+                }
+                else
+                {
+                    _applicationInstanceManager.Entries[1] = new ApplicationInstance();
+
+                    registrar = new Registrar(_applicationInstanceManager.Entries[1]);
+                }
+            }
+            else
+            {
+                _applicationInstanceManager.Entries[0] = new ApplicationInstance();
+
+                registrar = new Registrar(_applicationInstanceManager.Entries[0]);
+            }
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result UnregisterApplicationInstance(ulong applicationInstanceId)
+        {
+            if (_applicationInstanceManager.Entries[applicationInstanceId] != null)
+            {
+                _applicationInstanceManager.Entries[applicationInstanceId] = null;
+            }
+
+            Os.SignalSystemEvent(ref _applicationInstanceManager.SystemEvent);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(2)]
+        public Result AcquireApplicationProcessPropertyUpdater(out IUpdater updater, ulong applicationInstanceId)
+        {
+            updater = new Updater(_applicationInstanceManager, applicationInstanceId, false);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(3)]
+        public Result AcquireApplicationCertificateUpdater(out IUpdater updater, ulong applicationInstanceId)
+        {
+            updater = new Updater(_applicationInstanceManager, applicationInstanceId, true);
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Prepo/Ipc/PrepoService.cs

@@ -5,6 +5,7 @@ using Ryujinx.Common.Utilities;
 using Ryujinx.Horizon.Common;
 using Ryujinx.Horizon.Prepo.Types;
 using Ryujinx.Horizon.Sdk.Account;
+using Ryujinx.Horizon.Sdk.Arp;
 using Ryujinx.Horizon.Sdk.Prepo;
 using Ryujinx.Horizon.Sdk.Sf;
 using Ryujinx.Horizon.Sdk.Sf.Hipc;
@@ -22,14 +23,16 @@ namespace Ryujinx.Horizon.Prepo.Ipc
             System,
         }
 
+        private readonly ArpApi _arp;
         private readonly PrepoServicePermissionLevel _permissionLevel;
         private ulong _systemSessionId;
 
         private bool _immediateTransmissionEnabled;
         private bool _userAgreementCheckEnabled = true;
 
-        public PrepoService(PrepoServicePermissionLevel permissionLevel)
+        public PrepoService(ArpApi arp, PrepoServicePermissionLevel permissionLevel)
         {
+            _arp = arp;
             _permissionLevel = permissionLevel;
         }
 
@@ -165,7 +168,7 @@ namespace Ryujinx.Horizon.Prepo.Ipc
             return PrepoResult.PermissionDenied;
         }
 
-        private static Result ProcessPlayReport(PlayReportKind playReportKind, ReadOnlySpan<byte> gameRoomBuffer, ReadOnlySpan<byte> reportBuffer, ulong pid, Uid userId, bool withUserId = false, ApplicationId applicationId = default)
+        private Result ProcessPlayReport(PlayReportKind playReportKind, ReadOnlySpan<byte> gameRoomBuffer, ReadOnlySpan<byte> reportBuffer, ulong pid, Uid userId, bool withUserId = false, ApplicationId applicationId = default)
         {
             if (withUserId)
             {
@@ -199,8 +202,8 @@ namespace Ryujinx.Horizon.Prepo.Ipc
             builder.AppendLine("PlayReport log:");
             builder.AppendLine($" Kind: {playReportKind}");
 
-            // NOTE: The service calls arp:r using the pid to get the application id, if it fails PrepoResult.InvalidPid is returned.
-            //       Reports are stored internally and an event is signaled to transmit them.
+            // NOTE: Reports are stored internally and an event is signaled to transmit them.
+
             if (pid != 0)
             {
                 builder.AppendLine($" Pid: {pid}");
@@ -210,6 +213,16 @@ namespace Ryujinx.Horizon.Prepo.Ipc
                 builder.AppendLine($" ApplicationId: {applicationId}");
             }
 
+            Result result = _arp.GetApplicationInstanceId(out ulong applicationInstanceId, pid);
+            if (result.IsFailure)
+            {
+                return PrepoResult.InvalidPid;
+            }
+
+            _arp.GetApplicationLaunchProperty(out ApplicationLaunchProperty applicationLaunchProperty, applicationInstanceId).AbortOnFailure();
+
+            builder.AppendLine($" ApplicationVersion: {applicationLaunchProperty.Version}");
+
             if (!userId.IsNull)
             {
                 builder.AppendLine($" UserId: {userId}");

src/Ryujinx.Horizon/Prepo/PrepoIpcServer.cs

@@ -1,4 +1,5 @@
 using Ryujinx.Horizon.Prepo.Types;
+using Ryujinx.Horizon.Sdk.Arp;
 using Ryujinx.Horizon.Sdk.Sf.Hipc;
 using Ryujinx.Horizon.Sdk.Sm;
 
@@ -17,16 +18,19 @@ namespace Ryujinx.Horizon.Prepo
         private static readonly ManagerOptions _managerOptions = new(PointerBufferSize, MaxDomains, MaxDomainObjects, false);
 
         private SmApi _sm;
+        private ArpApi _arp;
         private PrepoServerManager _serverManager;
 
         public void Initialize()
         {
             HeapAllocator allocator = new();
 
+            _arp = new ArpApi(allocator);
+
             _sm = new SmApi();
             _sm.Initialize().AbortOnFailure();
 
-            _serverManager = new PrepoServerManager(allocator, _sm, MaxPortsCount, _managerOptions, TotalMaxSessionsCount);
+            _serverManager = new PrepoServerManager(allocator, _sm, _arp, MaxPortsCount, _managerOptions, TotalMaxSessionsCount);
 
 #pragma warning disable IDE0055 // Disable formatting
             _serverManager.RegisterServer((int)PrepoPortIndex.Admin,   ServiceName.Encode("prepo:a"),  MaxSessionsCount); // 1.0.0-5.1.0
@@ -45,6 +49,7 @@ namespace Ryujinx.Horizon.Prepo
 
         public void Shutdown()
         {
+            _arp.Dispose();
             _serverManager.Dispose();
         }
     }

src/Ryujinx.Horizon/Prepo/PrepoServerManager.cs

@@ -1,6 +1,7 @@
 using Ryujinx.Horizon.Common;
 using Ryujinx.Horizon.Prepo.Ipc;
 using Ryujinx.Horizon.Prepo.Types;
+using Ryujinx.Horizon.Sdk.Arp;
 using Ryujinx.Horizon.Sdk.Sf.Hipc;
 using Ryujinx.Horizon.Sdk.Sm;
 using System;
@@ -9,8 +10,11 @@ namespace Ryujinx.Horizon.Prepo
 {
     class PrepoServerManager : ServerManager
     {
-        public PrepoServerManager(HeapAllocator allocator, SmApi sm, int maxPorts, ManagerOptions options, int maxSessions) : base(allocator, sm, maxPorts, options, maxSessions)
+        private readonly ArpApi _arp;
+
+        public PrepoServerManager(HeapAllocator allocator, SmApi sm, ArpApi arp, int maxPorts, ManagerOptions options, int maxSessions) : base(allocator, sm, maxPorts, options, maxSessions)
         {
+            _arp = arp;
         }
 
         protected override Result OnNeedsToAccept(int portIndex, Server server)
@@ -18,12 +22,12 @@ namespace Ryujinx.Horizon.Prepo
             return (PrepoPortIndex)portIndex switch
             {
 #pragma warning disable IDE0055 // Disable formatting
-                PrepoPortIndex.Admin   => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.Admin)),
-                PrepoPortIndex.Admin2  => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.Admin)),
-                PrepoPortIndex.Manager => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.Manager)),
-                PrepoPortIndex.User    => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.User)),
-                PrepoPortIndex.System  => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.System)),
-                PrepoPortIndex.Debug   => AcceptImpl(server, new PrepoService(PrepoServicePermissionLevel.Debug)),
+                PrepoPortIndex.Admin   => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.Admin)),
+                PrepoPortIndex.Admin2  => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.Admin)),
+                PrepoPortIndex.Manager => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.Manager)),
+                PrepoPortIndex.User    => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.User)),
+                PrepoPortIndex.System  => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.System)),
+                PrepoPortIndex.Debug   => AcceptImpl(server, new PrepoService(_arp, PrepoServicePermissionLevel.Debug)),
                 _                      => throw new ArgumentOutOfRangeException(nameof(portIndex)),
 #pragma warning restore IDE0055
             };

src/Ryujinx.Horizon/Sdk/Arp/ApplicationCertificate.cs

@@ -0,0 +1,9 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x528)]
+    public struct ApplicationCertificate
+    {
+    }
+}

src/Ryujinx.Horizon/Sdk/Arp/ApplicationKind.cs

@@ -0,0 +1,8 @@
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    public enum ApplicationKind : byte
+    {
+        Application,
+        MicroApplication,
+    }
+}

src/Ryujinx.Horizon/Sdk/Arp/ApplicationLaunchProperty.cs

@@ -0,0 +1,14 @@
+using Ryujinx.Horizon.Sdk.Ncm;
+
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    public struct ApplicationLaunchProperty
+    {
+        public ApplicationId ApplicationId;
+        public uint Version;
+        public StorageId Storage;
+        public StorageId PatchStorage;
+        public ApplicationKind ApplicationKind;
+        public byte Padding;
+    }
+}

src/Ryujinx.Horizon/Sdk/Arp/ApplicationProcessProperty.cs

@@ -0,0 +1,10 @@
+using Ryujinx.Common.Memory;
+
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    public struct ApplicationProcessProperty
+    {
+        public byte ProgramIndex;
+        public Array15<byte> Unknown;
+    }
+}

src/Ryujinx.Horizon/Sdk/Arp/ArpApi.cs

@@ -0,0 +1,130 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Ns;
+using Ryujinx.Horizon.Sdk.Sf.Cmif;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using Ryujinx.Horizon.Sdk.Sm;
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    class ArpApi : IDisposable
+    {
+        private const string ArpRName = "arp:r";
+
+        private readonly HeapAllocator _allocator;
+        private int _sessionHandle;
+
+        public ArpApi(HeapAllocator allocator)
+        {
+            _allocator = allocator;
+        }
+
+        private void InitializeArpRService()
+        {
+            if (_sessionHandle == 0)
+            {
+                using var smApi = new SmApi();
+
+                smApi.Initialize();
+                smApi.GetServiceHandle(out _sessionHandle, ServiceName.Encode(ArpRName)).AbortOnFailure();
+            }
+        }
+
+        public Result GetApplicationInstanceId(out ulong applicationInstanceId, ulong applicationPid)
+        {
+            Span<byte> data = stackalloc byte[8];
+            SpanWriter writer = new(data);
+
+            writer.Write(applicationPid);
+
+            InitializeArpRService();
+
+            Result result = ServiceUtil.SendRequest(out CmifResponse response, _sessionHandle, 3, sendPid: false, data);
+            if (result.IsFailure)
+            {
+                applicationInstanceId = 0;
+
+                return result;
+            }
+
+            SpanReader reader = new(response.Data);
+
+            applicationInstanceId = reader.Read<ulong>();
+
+            return Result.Success;
+        }
+
+        public Result GetApplicationLaunchProperty(out ApplicationLaunchProperty applicationLaunchProperty, ulong applicationInstanceId)
+        {
+            applicationLaunchProperty = default;
+
+            Span<byte> data = stackalloc byte[8];
+            SpanWriter writer = new(data);
+
+            writer.Write(applicationInstanceId);
+
+            InitializeArpRService();
+
+            Result result = ServiceUtil.SendRequest(out CmifResponse response, _sessionHandle, 0, sendPid: false, data);
+            if (result.IsFailure)
+            {
+                return result;
+            }
+
+            SpanReader reader = new(response.Data);
+
+            applicationLaunchProperty = reader.Read<ApplicationLaunchProperty>();
+
+            return Result.Success;
+        }
+
+        public Result GetApplicationControlProperty(out ApplicationControlProperty applicationControlProperty, ulong applicationInstanceId)
+        {
+            applicationControlProperty = default;
+
+            Span<byte> data = stackalloc byte[8];
+            SpanWriter writer = new(data);
+
+            writer.Write(applicationInstanceId);
+
+            ulong bufferSize = (ulong)Unsafe.SizeOf<ApplicationControlProperty>();
+            ulong bufferAddress = _allocator.Allocate(bufferSize);
+
+            InitializeArpRService();
+
+            Result result = ServiceUtil.SendRequest(
+                out CmifResponse response,
+                _sessionHandle,
+                1,
+                sendPid: false,
+                data,
+                stackalloc[] { HipcBufferFlags.Out | HipcBufferFlags.MapAlias | HipcBufferFlags.FixedSize },
+                stackalloc[] { new PointerAndSize(bufferAddress, bufferSize) });
+
+            if (result.IsFailure)
+            {
+                return result;
+            }
+
+            applicationControlProperty = HorizonStatic.AddressSpace.Read<ApplicationControlProperty>(bufferAddress);
+
+            _allocator.Free(bufferAddress, bufferSize);
+
+            return Result.Success;
+        }
+
+        public void Dispose()
+        {
+            if (_sessionHandle != 0)
+            {
+                HorizonStatic.Syscall.CloseHandle(_sessionHandle);
+
+                _sessionHandle = 0;
+            }
+
+            GC.SuppressFinalize(this);
+        }
+    }
+}

src/Ryujinx.Horizon/Sdk/Arp/ArpResult.cs

@@ -0,0 +1,17 @@
+using Ryujinx.Horizon.Common;
+
+namespace Ryujinx.Horizon.Sdk.Arp
+{
+    static class ArpResult
+    {
+        private const int ModuleId = 157;
+
+        public static Result InvalidArgument => new(ModuleId, 30);
+        public static Result InvalidPid => new(ModuleId, 31);
+        public static Result InvalidPointer => new(ModuleId, 32);
+        public static Result DataAlreadyBound => new(ModuleId, 42);
+        public static Result AllocationFailed => new(ModuleId, 63);
+        public static Result NoFreeInstance => new(ModuleId, 101);
+        public static Result InvalidInstanceId => new(ModuleId, 102);
+    }
+}